28140640

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{271}}^1$

素因数の和:356

約数の個数: 96

約数和(自身を含む): 74027520

約数和(自身を除く): 45886880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 59, 80, 88, 110, 118, 160, 176, 220, 236, 271, 295, 352, 440, 472, 542, 590, 649, 880, 944, 1084, 1180, 1298, 1355, 1760, 1888, 2168, 2360, 2596, 2710, 2981, 3245, 4336, 4720, 5192, 5420, 5962, 6490, 8672, 9440, 10384, 10840, 11924, 12980, 14905, 15989, 20768, 21680, 23848, 25960, 29810, 31978, 43360, 47696, 51920, 59620, 63956, 79945, 95392, 103840, 119240, 127912, 159890, 175879, 238480, 255824, 319780, 351758, 476960, 511648, 639560, 703516, 879395, 1279120, 1407032, 1758790, 2558240, 2814064, 3517580, 5628128, 7035160, 14070320, 28140640]

約数ペア:

[(1, 28140640), (2, 14070320), (4, 7035160), (5, 5628128), (8, 3517580), (10, 2814064), (11, 2558240), (16, 1758790), (20, 1407032), (22, 1279120), (32, 879395), (40, 703516), (44, 639560), (55, 511648), (59, 476960), (80, 351758), (88, 319780), (110, 255824), (118, 238480), (160, 175879), (176, 159890), (220, 127912), (236, 119240), (271, 103840), (295, 95392), (352, 79945), (440, 63956), (472, 59620), (542, 51920), (590, 47696), (649, 43360), (880, 31978), (944, 29810), (1084, 25960), (1180, 23848), (1298, 21680), (1355, 20768), (1760, 15989), (1888, 14905), (2168, 12980), (2360, 11924), (2596, 10840), (2710, 10384), (2981, 9440), (3245, 8672), (4336, 6490), (4720, 5962), (5192, 5420)]