90987440

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{521}}^1$

素因数の和:630

約数の個数: 80

約数和(自身を含む): 221369760

約数和(自身を除く): 130382320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 59, 74, 80, 118, 148, 185, 236, 295, 296, 370, 472, 521, 590, 592, 740, 944, 1042, 1180, 1480, 2084, 2183, 2360, 2605, 2960, 4168, 4366, 4720, 5210, 8336, 8732, 10420, 10915, 17464, 19277, 20840, 21830, 30739, 34928, 38554, 41680, 43660, 61478, 77108, 87320, 96385, 122956, 153695, 154216, 174640, 192770, 245912, 307390, 308432, 385540, 491824, 614780, 771080, 1137343, 1229560, 1542160, 2274686, 2459120, 4549372, 5686715, 9098744, 11373430, 18197488, 22746860, 45493720, 90987440]

約数ペア:

[(1, 90987440), (2, 45493720), (4, 22746860), (5, 18197488), (8, 11373430), (10, 9098744), (16, 5686715), (20, 4549372), (37, 2459120), (40, 2274686), (59, 1542160), (74, 1229560), (80, 1137343), (118, 771080), (148, 614780), (185, 491824), (236, 385540), (295, 308432), (296, 307390), (370, 245912), (472, 192770), (521, 174640), (590, 154216), (592, 153695), (740, 122956), (944, 96385), (1042, 87320), (1180, 77108), (1480, 61478), (2084, 43660), (2183, 41680), (2360, 38554), (2605, 34928), (2960, 30739), (4168, 21830), (4366, 20840), (4720, 19277), (5210, 17464), (8336, 10915), (8732, 10420)]