131138640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{7919}}^1$

素因数の和:7961

約数の個数: 120

約数和(自身を含む): 459613440

約数和(自身を除く): 328474800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 115, 120, 138, 144, 180, 184, 207, 230, 240, 276, 345, 360, 368, 414, 460, 552, 690, 720, 828, 920, 1035, 1104, 1380, 1656, 1840, 2070, 2760, 3312, 4140, 5520, 7919, 8280, 15838, 16560, 23757, 31676, 39595, 47514, 63352, 71271, 79190, 95028, 118785, 126704, 142542, 158380, 182137, 190056, 237570, 285084, 316760, 356355, 364274, 380112, 475140, 546411, 570168, 633520, 712710, 728548, 910685, 950280, 1092822, 1140336, 1425420, 1457096, 1639233, 1821370, 1900560, 2185644, 2732055, 2850840, 2914192, 3278466, 3642740, 4371288, 5464110, 5701680, 6556932, 7285480, 8196165, 8742576, 10928220, 13113864, 14570960, 16392330, 21856440, 26227728, 32784660, 43712880, 65569320, 131138640]

約数ペア:

[(1, 131138640), (2, 65569320), (3, 43712880), (4, 32784660), (5, 26227728), (6, 21856440), (8, 16392330), (9, 14570960), (10, 13113864), (12, 10928220), (15, 8742576), (16, 8196165), (18, 7285480), (20, 6556932), (23, 5701680), (24, 5464110), (30, 4371288), (36, 3642740), (40, 3278466), (45, 2914192), (46, 2850840), (48, 2732055), (60, 2185644), (69, 1900560), (72, 1821370), (80, 1639233), (90, 1457096), (92, 1425420), (115, 1140336), (120, 1092822), (138, 950280), (144, 910685), (180, 728548), (184, 712710), (207, 633520), (230, 570168), (240, 546411), (276, 475140), (345, 380112), (360, 364274), (368, 356355), (414, 316760), (460, 285084), (552, 237570), (690, 190056), (720, 182137), (828, 158380), (920, 142542), (1035, 126704), (1104, 118785), (1380, 95028), (1656, 79190), (1840, 71271), (2070, 63352), (2760, 47514), (3312, 39595), (4140, 31676), (5520, 23757), (7919, 16560), (8280, 15838)]