99120640

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1249}}^1$

素因数の和:1303

約数の個数: 80

約数和(自身を含む): 245520000

約数和(自身を除く): 146399360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1240, 1249, 1280, 1984, 2480, 2498, 2560, 3968, 4960, 4996, 6245, 7936, 9920, 9992, 12490, 15872, 19840, 19984, 24980, 38719, 39680, 39968, 49960, 77438, 79360, 79936, 99920, 154876, 159872, 193595, 199840, 309752, 319744, 387190, 399680, 619504, 639488, 774380, 799360, 1239008, 1548760, 1598720, 2478016, 3097520, 3197440, 4956032, 6195040, 9912064, 12390080, 19824128, 24780160, 49560320, 99120640]

約数ペア:

[(1, 99120640), (2, 49560320), (4, 24780160), (5, 19824128), (8, 12390080), (10, 9912064), (16, 6195040), (20, 4956032), (31, 3197440), (32, 3097520), (40, 2478016), (62, 1598720), (64, 1548760), (80, 1239008), (124, 799360), (128, 774380), (155, 639488), (160, 619504), (248, 399680), (256, 387190), (310, 319744), (320, 309752), (496, 199840), (512, 193595), (620, 159872), (640, 154876), (992, 99920), (1240, 79936), (1249, 79360), (1280, 77438), (1984, 49960), (2480, 39968), (2498, 39680), (2560, 38719), (3968, 24980), (4960, 19984), (4996, 19840), (6245, 15872), (7936, 12490), (9920, 9992)]