208021125

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{601}}^1$

素因数の和:703

約数の個数: 64

約数和(自身を含む): 378653184

約数和(自身を除く): 170632059

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 71, 75, 125, 195, 213, 325, 355, 375, 601, 923, 975, 1065, 1625, 1775, 1803, 2769, 3005, 4615, 4875, 5325, 7813, 8875, 9015, 13845, 15025, 23075, 23439, 26625, 39065, 42671, 45075, 69225, 75125, 115375, 117195, 128013, 195325, 213355, 225375, 346125, 554723, 585975, 640065, 976625, 1066775, 1664169, 2773615, 2929875, 3200325, 5333875, 8320845, 13868075, 16001625, 41604225, 69340375, 208021125]

約数ペア:

[(1, 208021125), (3, 69340375), (5, 41604225), (13, 16001625), (15, 13868075), (25, 8320845), (39, 5333875), (65, 3200325), (71, 2929875), (75, 2773615), (125, 1664169), (195, 1066775), (213, 976625), (325, 640065), (355, 585975), (375, 554723), (601, 346125), (923, 225375), (975, 213355), (1065, 195325), (1625, 128013), (1775, 117195), (1803, 115375), (2769, 75125), (3005, 69225), (4615, 45075), (4875, 42671), (5325, 39065), (7813, 26625), (8875, 23439), (9015, 23075), (13845, 15025)]