28983760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2$

素因数の和:117

約数の個数: 120

約数和(自身を含む): 77573160

約数和(自身を除く): 48589400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 31, 40, 52, 58, 62, 65, 80, 104, 116, 124, 130, 145, 155, 208, 232, 248, 260, 290, 310, 377, 403, 464, 496, 520, 580, 620, 754, 806, 899, 961, 1040, 1160, 1240, 1508, 1612, 1798, 1885, 1922, 2015, 2320, 2480, 3016, 3224, 3596, 3770, 3844, 4030, 4495, 4805, 6032, 6448, 7192, 7540, 7688, 8060, 8990, 9610, 11687, 12493, 14384, 15080, 15376, 16120, 17980, 19220, 23374, 24986, 27869, 30160, 32240, 35960, 38440, 46748, 49972, 55738, 58435, 62465, 71920, 76880, 93496, 99944, 111476, 116870, 124930, 139345, 186992, 199888, 222952, 233740, 249860, 278690, 362297, 445904, 467480, 499720, 557380, 724594, 934960, 999440, 1114760, 1449188, 1811485, 2229520, 2898376, 3622970, 5796752, 7245940, 14491880, 28983760]

約数ペア:

[(1, 28983760), (2, 14491880), (4, 7245940), (5, 5796752), (8, 3622970), (10, 2898376), (13, 2229520), (16, 1811485), (20, 1449188), (26, 1114760), (29, 999440), (31, 934960), (40, 724594), (52, 557380), (58, 499720), (62, 467480), (65, 445904), (80, 362297), (104, 278690), (116, 249860), (124, 233740), (130, 222952), (145, 199888), (155, 186992), (208, 139345), (232, 124930), (248, 116870), (260, 111476), (290, 99944), (310, 93496), (377, 76880), (403, 71920), (464, 62465), (496, 58435), (520, 55738), (580, 49972), (620, 46748), (754, 38440), (806, 35960), (899, 32240), (961, 30160), (1040, 27869), (1160, 24986), (1240, 23374), (1508, 19220), (1612, 17980), (1798, 16120), (1885, 15376), (1922, 15080), (2015, 14384), (2320, 12493), (2480, 11687), (3016, 9610), (3224, 8990), (3596, 8060), (3770, 7688), (3844, 7540), (4030, 7192), (4495, 6448), (4805, 6032)]