28757560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1907}}^1$

素因数の和:1960

約数の個数: 64

約数和(自身を含む): 72122400

約数和(自身を除く): 43364840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 52, 58, 65, 104, 116, 130, 145, 232, 260, 290, 377, 520, 580, 754, 1160, 1508, 1885, 1907, 3016, 3770, 3814, 7540, 7628, 9535, 15080, 15256, 19070, 24791, 38140, 49582, 55303, 76280, 99164, 110606, 123955, 198328, 221212, 247910, 276515, 442424, 495820, 553030, 718939, 991640, 1106060, 1437878, 2212120, 2875756, 3594695, 5751512, 7189390, 14378780, 28757560]

約数ペア:

[(1, 28757560), (2, 14378780), (4, 7189390), (5, 5751512), (8, 3594695), (10, 2875756), (13, 2212120), (20, 1437878), (26, 1106060), (29, 991640), (40, 718939), (52, 553030), (58, 495820), (65, 442424), (104, 276515), (116, 247910), (130, 221212), (145, 198328), (232, 123955), (260, 110606), (290, 99164), (377, 76280), (520, 55303), (580, 49582), (754, 38140), (1160, 24791), (1508, 19070), (1885, 15256), (1907, 15080), (3016, 9535), (3770, 7628), (3814, 7540)]