421157025

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{839}}^1$

素因数の和:975

約数の個数: 72

約数和(自身を含む): 796199040

約数和(自身を除く): 375042015

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 97, 115, 207, 225, 291, 345, 485, 575, 839, 873, 1035, 1455, 1725, 2231, 2425, 2517, 4195, 4365, 5175, 6693, 7275, 7551, 11155, 12585, 19297, 20079, 20975, 21825, 33465, 37755, 55775, 57891, 62925, 81383, 96485, 100395, 167325, 173673, 188775, 244149, 289455, 406915, 482425, 501975, 732447, 868365, 1220745, 1447275, 1871809, 2034575, 3662235, 4341825, 5615427, 6103725, 9359045, 16846281, 18311175, 28077135, 46795225, 84231405, 140385675, 421157025]

約数ペア:

[(1, 421157025), (3, 140385675), (5, 84231405), (9, 46795225), (15, 28077135), (23, 18311175), (25, 16846281), (45, 9359045), (69, 6103725), (75, 5615427), (97, 4341825), (115, 3662235), (207, 2034575), (225, 1871809), (291, 1447275), (345, 1220745), (485, 868365), (575, 732447), (839, 501975), (873, 482425), (1035, 406915), (1455, 289455), (1725, 244149), (2231, 188775), (2425, 173673), (2517, 167325), (4195, 100395), (4365, 96485), (5175, 81383), (6693, 62925), (7275, 57891), (7551, 55775), (11155, 37755), (12585, 33465), (19297, 21825), (20079, 20975)]