28088720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{541}}^1$

素因数の和:624

約数の個数: 80

約数和(自身を含む): 72584640

約数和(自身を除く): 44495920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 59, 80, 88, 110, 118, 176, 220, 236, 295, 440, 472, 541, 590, 649, 880, 944, 1082, 1180, 1298, 2164, 2360, 2596, 2705, 3245, 4328, 4720, 5192, 5410, 5951, 6490, 8656, 10384, 10820, 11902, 12980, 21640, 23804, 25960, 29755, 31919, 43280, 47608, 51920, 59510, 63838, 95216, 119020, 127676, 159595, 238040, 255352, 319190, 351109, 476080, 510704, 638380, 702218, 1276760, 1404436, 1755545, 2553520, 2808872, 3511090, 5617744, 7022180, 14044360, 28088720]

約数ペア:

[(1, 28088720), (2, 14044360), (4, 7022180), (5, 5617744), (8, 3511090), (10, 2808872), (11, 2553520), (16, 1755545), (20, 1404436), (22, 1276760), (40, 702218), (44, 638380), (55, 510704), (59, 476080), (80, 351109), (88, 319190), (110, 255352), (118, 238040), (176, 159595), (220, 127676), (236, 119020), (295, 95216), (440, 63838), (472, 59510), (541, 51920), (590, 47608), (649, 43280), (880, 31919), (944, 29755), (1082, 25960), (1180, 23804), (1298, 21640), (2164, 12980), (2360, 11902), (2596, 10820), (2705, 10384), (3245, 8656), (4328, 6490), (4720, 5951), (5192, 5410)]