1278720

素因数分解:

$2^8\times 3^3\times 5^1\times {\mathrm{37}}^1$

素因数の和:67

約数の個数: 144

約数和(自身を含む): 4660320

約数和(自身を除く): 3381600

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, 256, 270, 288, 296, 320, 333, 360, 370, 384, 432, 444, 480, 540, 555, 576, 592, 640, 666, 720, 740, 768, 864, 888, 960, 999, 1080, 1110, 1152, 1184, 1280, 1332, 1440, 1480, 1665, 1728, 1776, 1920, 1998, 2160, 2220, 2304, 2368, 2664, 2880, 2960, 3330, 3456, 3552, 3840, 3996, 4320, 4440, 4736, 4995, 5328, 5760, 5920, 6660, 6912, 7104, 7992, 8640, 8880, 9472, 9990, 10656, 11520, 11840, 13320, 14208, 15984, 17280, 17760, 19980, 21312, 23680, 26640, 28416, 31968, 34560, 35520, 39960, 42624, 47360, 53280, 63936, 71040, 79920, 85248, 106560, 127872, 142080, 159840, 213120, 255744, 319680, 426240, 639360, 1278720]

約数ペア:

[(1, 1278720), (2, 639360), (3, 426240), (4, 319680), (5, 255744), (6, 213120), (8, 159840), (9, 142080), (10, 127872), (12, 106560), (15, 85248), (16, 79920), (18, 71040), (20, 63936), (24, 53280), (27, 47360), (30, 42624), (32, 39960), (36, 35520), (37, 34560), (40, 31968), (45, 28416), (48, 26640), (54, 23680), (60, 21312), (64, 19980), (72, 17760), (74, 17280), (80, 15984), (90, 14208), (96, 13320), (108, 11840), (111, 11520), (120, 10656), (128, 9990), (135, 9472), (144, 8880), (148, 8640), (160, 7992), (180, 7104), (185, 6912), (192, 6660), (216, 5920), (222, 5760), (240, 5328), (256, 4995), (270, 4736), (288, 4440), (296, 4320), (320, 3996), (333, 3840), (360, 3552), (370, 3456), (384, 3330), (432, 2960), (444, 2880), (480, 2664), (540, 2368), (555, 2304), (576, 2220), (592, 2160), (640, 1998), (666, 1920), (720, 1776), (740, 1728), (768, 1665), (864, 1480), (888, 1440), (960, 1332), (999, 1280), (1080, 1184), (1110, 1152)]