280665320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{757}}^1$

素因数の和:835

約数の個数: 128

約数和(自身を含む): 733501440

約数和(自身を除く): 452836120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 31, 40, 46, 52, 62, 65, 92, 104, 115, 124, 130, 155, 184, 230, 248, 260, 299, 310, 403, 460, 520, 598, 620, 713, 757, 806, 920, 1196, 1240, 1426, 1495, 1514, 1612, 2015, 2392, 2852, 2990, 3028, 3224, 3565, 3785, 4030, 5704, 5980, 6056, 7130, 7570, 8060, 9269, 9841, 11960, 14260, 15140, 16120, 17411, 18538, 19682, 23467, 28520, 30280, 34822, 37076, 39364, 46345, 46934, 49205, 69644, 74152, 78728, 87055, 92690, 93868, 98410, 117335, 139288, 174110, 185380, 187736, 196820, 226343, 234670, 305071, 348220, 370760, 393640, 452686, 469340, 539741, 610142, 696440, 905372, 938680, 1079482, 1131715, 1220284, 1525355, 1810744, 2158964, 2263430, 2440568, 2698705, 3050710, 4317928, 4526860, 5397410, 6101420, 7016633, 9053720, 10794820, 12202840, 14033266, 21589640, 28066532, 35083165, 56133064, 70166330, 140332660, 280665320]

約数ペア:

[(1, 280665320), (2, 140332660), (4, 70166330), (5, 56133064), (8, 35083165), (10, 28066532), (13, 21589640), (20, 14033266), (23, 12202840), (26, 10794820), (31, 9053720), (40, 7016633), (46, 6101420), (52, 5397410), (62, 4526860), (65, 4317928), (92, 3050710), (104, 2698705), (115, 2440568), (124, 2263430), (130, 2158964), (155, 1810744), (184, 1525355), (230, 1220284), (248, 1131715), (260, 1079482), (299, 938680), (310, 905372), (403, 696440), (460, 610142), (520, 539741), (598, 469340), (620, 452686), (713, 393640), (757, 370760), (806, 348220), (920, 305071), (1196, 234670), (1240, 226343), (1426, 196820), (1495, 187736), (1514, 185380), (1612, 174110), (2015, 139288), (2392, 117335), (2852, 98410), (2990, 93868), (3028, 92690), (3224, 87055), (3565, 78728), (3785, 74152), (4030, 69644), (5704, 49205), (5980, 46934), (6056, 46345), (7130, 39364), (7570, 37076), (8060, 34822), (9269, 30280), (9841, 28520), (11960, 23467), (14260, 19682), (15140, 18538), (16120, 17411)]