28653520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2693}}^1$

素因数の和:2732

約数の個数: 80

約数和(自身を含む): 80173440

約数和(自身を除く): 51519920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 266, 280, 304, 380, 532, 560, 665, 760, 1064, 1330, 1520, 2128, 2660, 2693, 5320, 5386, 10640, 10772, 13465, 18851, 21544, 26930, 37702, 43088, 51167, 53860, 75404, 94255, 102334, 107720, 150808, 188510, 204668, 215440, 255835, 301616, 358169, 377020, 409336, 511670, 716338, 754040, 818672, 1023340, 1432676, 1508080, 1790845, 2046680, 2865352, 3581690, 4093360, 5730704, 7163380, 14326760, 28653520]

約数ペア:

[(1, 28653520), (2, 14326760), (4, 7163380), (5, 5730704), (7, 4093360), (8, 3581690), (10, 2865352), (14, 2046680), (16, 1790845), (19, 1508080), (20, 1432676), (28, 1023340), (35, 818672), (38, 754040), (40, 716338), (56, 511670), (70, 409336), (76, 377020), (80, 358169), (95, 301616), (112, 255835), (133, 215440), (140, 204668), (152, 188510), (190, 150808), (266, 107720), (280, 102334), (304, 94255), (380, 75404), (532, 53860), (560, 51167), (665, 43088), (760, 37702), (1064, 26930), (1330, 21544), (1520, 18851), (2128, 13465), (2660, 10772), (2693, 10640), (5320, 5386)]