28888720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{653}}^1$

素因数の和:752

約数の個数: 80

約数和(自身を含む): 77852160

約数和(自身を除く): 48963440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 79, 80, 112, 140, 158, 280, 316, 395, 553, 560, 632, 653, 790, 1106, 1264, 1306, 1580, 2212, 2612, 2765, 3160, 3265, 4424, 4571, 5224, 5530, 6320, 6530, 8848, 9142, 10448, 11060, 13060, 18284, 22120, 22855, 26120, 36568, 44240, 45710, 51587, 52240, 73136, 91420, 103174, 182840, 206348, 257935, 361109, 365680, 412696, 515870, 722218, 825392, 1031740, 1444436, 1805545, 2063480, 2888872, 3611090, 4126960, 5777744, 7222180, 14444360, 28888720]

約数ペア:

[(1, 28888720), (2, 14444360), (4, 7222180), (5, 5777744), (7, 4126960), (8, 3611090), (10, 2888872), (14, 2063480), (16, 1805545), (20, 1444436), (28, 1031740), (35, 825392), (40, 722218), (56, 515870), (70, 412696), (79, 365680), (80, 361109), (112, 257935), (140, 206348), (158, 182840), (280, 103174), (316, 91420), (395, 73136), (553, 52240), (560, 51587), (632, 45710), (653, 44240), (790, 36568), (1106, 26120), (1264, 22855), (1306, 22120), (1580, 18284), (2212, 13060), (2612, 11060), (2765, 10448), (3160, 9142), (3265, 8848), (4424, 6530), (4571, 6320), (5224, 5530)]