131323240

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{503}}^1$

素因数の和:682

約数の個数: 64

約数和(自身を含む): 303730560

約数和(自身を除く): 172407320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 107, 122, 214, 244, 305, 428, 488, 503, 535, 610, 856, 1006, 1070, 1220, 2012, 2140, 2440, 2515, 4024, 4280, 5030, 6527, 10060, 13054, 20120, 26108, 30683, 32635, 52216, 53821, 61366, 65270, 107642, 122732, 130540, 153415, 215284, 245464, 261080, 269105, 306830, 430568, 538210, 613660, 1076420, 1227320, 2152840, 3283081, 6566162, 13132324, 16415405, 26264648, 32830810, 65661620, 131323240]

約数ペア:

[(1, 131323240), (2, 65661620), (4, 32830810), (5, 26264648), (8, 16415405), (10, 13132324), (20, 6566162), (40, 3283081), (61, 2152840), (107, 1227320), (122, 1076420), (214, 613660), (244, 538210), (305, 430568), (428, 306830), (488, 269105), (503, 261080), (535, 245464), (610, 215284), (856, 153415), (1006, 130540), (1070, 122732), (1220, 107642), (2012, 65270), (2140, 61366), (2440, 53821), (2515, 52216), (4024, 32635), (4280, 30683), (5030, 26108), (6527, 20120), (10060, 13054)]