38886640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{269}}^1$

素因数の和:434

約数の個数: 80

約数和(自身を含む): 98431200

約数和(自身を除く): 59544560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 139, 208, 260, 269, 278, 520, 538, 556, 695, 1040, 1076, 1112, 1345, 1390, 1807, 2152, 2224, 2690, 2780, 3497, 3614, 4304, 5380, 5560, 6994, 7228, 9035, 10760, 11120, 13988, 14456, 17485, 18070, 21520, 27976, 28912, 34970, 36140, 37391, 55952, 69940, 72280, 74782, 139880, 144560, 149564, 186955, 279760, 299128, 373910, 486083, 598256, 747820, 972166, 1495640, 1944332, 2430415, 2991280, 3888664, 4860830, 7777328, 9721660, 19443320, 38886640]

約数ペア:

[(1, 38886640), (2, 19443320), (4, 9721660), (5, 7777328), (8, 4860830), (10, 3888664), (13, 2991280), (16, 2430415), (20, 1944332), (26, 1495640), (40, 972166), (52, 747820), (65, 598256), (80, 486083), (104, 373910), (130, 299128), (139, 279760), (208, 186955), (260, 149564), (269, 144560), (278, 139880), (520, 74782), (538, 72280), (556, 69940), (695, 55952), (1040, 37391), (1076, 36140), (1112, 34970), (1345, 28912), (1390, 27976), (1807, 21520), (2152, 18070), (2224, 17485), (2690, 14456), (2780, 13988), (3497, 11120), (3614, 10760), (4304, 9035), (5380, 7228), (5560, 6994)]