201919875

素因数分解:

$3^1\times 5^3\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{571}}^1$

素因数の和:653

約数の個数: 64

約数和(自身を含む): 359783424

約数和(自身を除く): 157863549

約数列:

[1, 3, 5, 15, 23, 25, 41, 69, 75, 115, 123, 125, 205, 345, 375, 571, 575, 615, 943, 1025, 1713, 1725, 2829, 2855, 2875, 3075, 4715, 5125, 8565, 8625, 13133, 14145, 14275, 15375, 23411, 23575, 39399, 42825, 65665, 70233, 70725, 71375, 117055, 117875, 196995, 214125, 328325, 351165, 353625, 538453, 585275, 984975, 1615359, 1641625, 1755825, 2692265, 2926375, 4924875, 8076795, 8779125, 13461325, 40383975, 67306625, 201919875]

約数ペア:

[(1, 201919875), (3, 67306625), (5, 40383975), (15, 13461325), (23, 8779125), (25, 8076795), (41, 4924875), (69, 2926375), (75, 2692265), (115, 1755825), (123, 1641625), (125, 1615359), (205, 984975), (345, 585275), (375, 538453), (571, 353625), (575, 351165), (615, 328325), (943, 214125), (1025, 196995), (1713, 117875), (1725, 117055), (2829, 71375), (2855, 70725), (2875, 70233), (3075, 65665), (4715, 42825), (5125, 39399), (8565, 23575), (8625, 23411), (13133, 15375), (14145, 14275)]