28168275

素因数分解:

$3^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 48711168

約数和(自身を除く): 20542893

約数列:

[1, 3, 5, 15, 25, 47, 61, 75, 131, 141, 183, 235, 305, 393, 655, 705, 915, 1175, 1525, 1965, 2867, 3275, 3525, 4575, 6157, 7991, 8601, 9825, 14335, 18471, 23973, 30785, 39955, 43005, 71675, 92355, 119865, 153925, 199775, 215025, 375577, 461775, 599325, 1126731, 1877885, 5633655, 9389425, 28168275]

約数ペア:

[(1, 28168275), (3, 9389425), (5, 5633655), (15, 1877885), (25, 1126731), (47, 599325), (61, 461775), (75, 375577), (131, 215025), (141, 199775), (183, 153925), (235, 119865), (305, 92355), (393, 71675), (655, 43005), (705, 39955), (915, 30785), (1175, 23973), (1525, 18471), (1965, 14335), (2867, 9825), (3275, 8601), (3525, 7991), (4575, 6157)]