261498240

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{409}}^1$

素因数の和:474

約数の個数: 256

約数和(自身を含む): 953496000

約数和(自身を除く): 691997760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 37, 40, 45, 48, 54, 60, 64, 72, 74, 80, 90, 96, 108, 111, 120, 128, 135, 144, 148, 160, 180, 185, 192, 216, 222, 240, 270, 288, 296, 320, 333, 360, 370, 384, 409, 432, 444, 480, 540, 555, 576, 592, 640, 666, 720, 740, 818, 864, 888, 960, 999, 1080, 1110, 1152, 1184, 1227, 1332, 1440, 1480, 1636, 1665, 1728, 1776, 1920, 1998, 2045, 2160, 2220, 2368, 2454, 2664, 2880, 2960, 3272, 3330, 3456, 3552, 3681, 3996, 4090, 4320, 4440, 4736, 4908, 4995, 5328, 5760, 5920, 6135, 6544, 6660, 7104, 7362, 7992, 8180, 8640, 8880, 9816, 9990, 10656, 11043, 11840, 12270, 13088, 13320, 14208, 14724, 15133, 15984, 16360, 17280, 17760, 18405, 19632, 19980, 21312, 22086, 23680, 24540, 26176, 26640, 29448, 30266, 31968, 32720, 35520, 36810, 39264, 39960, 42624, 44172, 45399, 49080, 52352, 53280, 55215, 58896, 60532, 63936, 65440, 71040, 73620, 75665, 78528, 79920, 88344, 90798, 98160, 106560, 110430, 117792, 121064, 127872, 130880, 136197, 147240, 151330, 157056, 159840, 176688, 181596, 196320, 213120, 220860, 226995, 235584, 242128, 261760, 272394, 294480, 302660, 319680, 353376, 363192, 392640, 408591, 441720, 453990, 471168, 484256, 544788, 588960, 605320, 639360, 680985, 706752, 726384, 785280, 817182, 883440, 907980, 968512, 1089576, 1177920, 1210640, 1361970, 1413504, 1452768, 1634364, 1766880, 1815960, 1937024, 2042955, 2179152, 2355840, 2421280, 2723940, 2905536, 3268728, 3533760, 3631920, 4085910, 4358304, 4842560, 5447880, 5811072, 6537456, 7067520, 7263840, 8171820, 8716608, 9685120, 10895760, 13074912, 14527680, 16343640, 17433216, 21791520, 26149824, 29055360, 32687280, 43583040, 52299648, 65374560, 87166080, 130749120, 261498240]

約数ペア:

[(1, 261498240), (2, 130749120), (3, 87166080), (4, 65374560), (5, 52299648), (6, 43583040), (8, 32687280), (9, 29055360), (10, 26149824), (12, 21791520), (15, 17433216), (16, 16343640), (18, 14527680), (20, 13074912), (24, 10895760), (27, 9685120), (30, 8716608), (32, 8171820), (36, 7263840), (37, 7067520), (40, 6537456), (45, 5811072), (48, 5447880), (54, 4842560), (60, 4358304), (64, 4085910), (72, 3631920), (74, 3533760), (80, 3268728), (90, 2905536), (96, 2723940), (108, 2421280), (111, 2355840), (120, 2179152), (128, 2042955), (135, 1937024), (144, 1815960), (148, 1766880), (160, 1634364), (180, 1452768), (185, 1413504), (192, 1361970), (216, 1210640), (222, 1177920), (240, 1089576), (270, 968512), (288, 907980), (296, 883440), (320, 817182), (333, 785280), (360, 726384), (370, 706752), (384, 680985), (409, 639360), (432, 605320), (444, 588960), (480, 544788), (540, 484256), (555, 471168), (576, 453990), (592, 441720), (640, 408591), (666, 392640), (720, 363192), (740, 353376), (818, 319680), (864, 302660), (888, 294480), (960, 272394), (999, 261760), (1080, 242128), (1110, 235584), (1152, 226995), (1184, 220860), (1227, 213120), (1332, 196320), (1440, 181596), (1480, 176688), (1636, 159840), (1665, 157056), (1728, 151330), (1776, 147240), (1920, 136197), (1998, 130880), (2045, 127872), (2160, 121064), (2220, 117792), (2368, 110430), (2454, 106560), (2664, 98160), (2880, 90798), (2960, 88344), (3272, 79920), (3330, 78528), (3456, 75665), (3552, 73620), (3681, 71040), (3996, 65440), (4090, 63936), (4320, 60532), (4440, 58896), (4736, 55215), (4908, 53280), (4995, 52352), (5328, 49080), (5760, 45399), (5920, 44172), (6135, 42624), (6544, 39960), (6660, 39264), (7104, 36810), (7362, 35520), (7992, 32720), (8180, 31968), (8640, 30266), (8880, 29448), (9816, 26640), (9990, 26176), (10656, 24540), (11043, 23680), (11840, 22086), (12270, 21312), (13088, 19980), (13320, 19632), (14208, 18405), (14724, 17760), (15133, 17280), (15984, 16360)]