209928495

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{317}}^1$

素因数の和:409

約数の個数: 96

約数和(自身を含む): 422843328

約数和(自身を除く): 212914833

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 49, 51, 53, 85, 105, 119, 147, 159, 245, 255, 265, 317, 357, 371, 595, 735, 795, 833, 901, 951, 1113, 1585, 1785, 1855, 2219, 2499, 2597, 2703, 4165, 4505, 4755, 5389, 5565, 6307, 6657, 7791, 11095, 12495, 12985, 13515, 15533, 16167, 16801, 18921, 26945, 31535, 33285, 37723, 38955, 44149, 46599, 50403, 77665, 80835, 84005, 94605, 113169, 117607, 132447, 188615, 220745, 232995, 252015, 264061, 285617, 352821, 565845, 588035, 662235, 792183, 823249, 856851, 1320305, 1428085, 1764105, 1999319, 2469747, 3960915, 4116245, 4284255, 5997957, 9996595, 12348735, 13995233, 29989785, 41985699, 69976165, 209928495]

約数ペア:

[(1, 209928495), (3, 69976165), (5, 41985699), (7, 29989785), (15, 13995233), (17, 12348735), (21, 9996595), (35, 5997957), (49, 4284255), (51, 4116245), (53, 3960915), (85, 2469747), (105, 1999319), (119, 1764105), (147, 1428085), (159, 1320305), (245, 856851), (255, 823249), (265, 792183), (317, 662235), (357, 588035), (371, 565845), (595, 352821), (735, 285617), (795, 264061), (833, 252015), (901, 232995), (951, 220745), (1113, 188615), (1585, 132447), (1785, 117607), (1855, 113169), (2219, 94605), (2499, 84005), (2597, 80835), (2703, 77665), (4165, 50403), (4505, 46599), (4755, 44149), (5389, 38955), (5565, 37723), (6307, 33285), (6657, 31535), (7791, 26945), (11095, 18921), (12495, 16801), (12985, 16167), (13515, 15533)]