15999880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1061}}^1$

素因数の和:1114

約数の個数: 64

約数和(自身を含む): 40143600

約数和(自身を除く): 24143720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 52, 58, 65, 104, 116, 130, 145, 232, 260, 290, 377, 520, 580, 754, 1061, 1160, 1508, 1885, 2122, 3016, 3770, 4244, 5305, 7540, 8488, 10610, 13793, 15080, 21220, 27586, 30769, 42440, 55172, 61538, 68965, 110344, 123076, 137930, 153845, 246152, 275860, 307690, 399997, 551720, 615380, 799994, 1230760, 1599988, 1999985, 3199976, 3999970, 7999940, 15999880]

約数ペア:

[(1, 15999880), (2, 7999940), (4, 3999970), (5, 3199976), (8, 1999985), (10, 1599988), (13, 1230760), (20, 799994), (26, 615380), (29, 551720), (40, 399997), (52, 307690), (58, 275860), (65, 246152), (104, 153845), (116, 137930), (130, 123076), (145, 110344), (232, 68965), (260, 61538), (290, 55172), (377, 42440), (520, 30769), (580, 27586), (754, 21220), (1061, 15080), (1160, 13793), (1508, 10610), (1885, 8488), (2122, 7540), (3016, 5305), (3770, 4244)]