21658320

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{271}}^1$

素因数の和:330

約数の個数: 160

約数和(自身を含む): 76899840

約数和(自身を除く): 55241520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 37, 40, 45, 48, 54, 60, 72, 74, 80, 90, 108, 111, 120, 135, 144, 148, 180, 185, 216, 222, 240, 270, 271, 296, 333, 360, 370, 432, 444, 540, 542, 555, 592, 666, 720, 740, 813, 888, 999, 1080, 1084, 1110, 1332, 1355, 1480, 1626, 1665, 1776, 1998, 2160, 2168, 2220, 2439, 2664, 2710, 2960, 3252, 3330, 3996, 4065, 4336, 4440, 4878, 4995, 5328, 5420, 6504, 6660, 7317, 7992, 8130, 8880, 9756, 9990, 10027, 10840, 12195, 13008, 13320, 14634, 15984, 16260, 19512, 19980, 20054, 21680, 24390, 26640, 29268, 30081, 32520, 36585, 39024, 39960, 40108, 48780, 50135, 58536, 60162, 65040, 73170, 79920, 80216, 90243, 97560, 100270, 117072, 120324, 146340, 150405, 160432, 180486, 195120, 200540, 240648, 270729, 292680, 300810, 360972, 401080, 451215, 481296, 541458, 585360, 601620, 721944, 802160, 902430, 1082916, 1203240, 1353645, 1443888, 1804860, 2165832, 2406480, 2707290, 3609720, 4331664, 5414580, 7219440, 10829160, 21658320]

約数ペア:

[(1, 21658320), (2, 10829160), (3, 7219440), (4, 5414580), (5, 4331664), (6, 3609720), (8, 2707290), (9, 2406480), (10, 2165832), (12, 1804860), (15, 1443888), (16, 1353645), (18, 1203240), (20, 1082916), (24, 902430), (27, 802160), (30, 721944), (36, 601620), (37, 585360), (40, 541458), (45, 481296), (48, 451215), (54, 401080), (60, 360972), (72, 300810), (74, 292680), (80, 270729), (90, 240648), (108, 200540), (111, 195120), (120, 180486), (135, 160432), (144, 150405), (148, 146340), (180, 120324), (185, 117072), (216, 100270), (222, 97560), (240, 90243), (270, 80216), (271, 79920), (296, 73170), (333, 65040), (360, 60162), (370, 58536), (432, 50135), (444, 48780), (540, 40108), (542, 39960), (555, 39024), (592, 36585), (666, 32520), (720, 30081), (740, 29268), (813, 26640), (888, 24390), (999, 21680), (1080, 20054), (1084, 19980), (1110, 19512), (1332, 16260), (1355, 15984), (1480, 14634), (1626, 13320), (1665, 13008), (1776, 12195), (1998, 10840), (2160, 10027), (2168, 9990), (2220, 9756), (2439, 8880), (2664, 8130), (2710, 7992), (2960, 7317), (3252, 6660), (3330, 6504), (3996, 5420), (4065, 5328), (4336, 4995), (4440, 4878)]