18002475

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:165

約数の個数: 72

約数和(自身を含む): 34819200

約数和(自身を除く): 16816725

約数列:

[1, 3, 5, 9, 15, 25, 29, 31, 45, 75, 87, 89, 93, 145, 155, 225, 261, 267, 279, 435, 445, 465, 725, 775, 801, 899, 1305, 1335, 1395, 2175, 2225, 2325, 2581, 2697, 2759, 4005, 4495, 6525, 6675, 6975, 7743, 8091, 8277, 12905, 13485, 13795, 20025, 22475, 23229, 24831, 38715, 40455, 41385, 64525, 67425, 68975, 80011, 116145, 124155, 193575, 202275, 206925, 240033, 400055, 580725, 620775, 720099, 1200165, 2000275, 3600495, 6000825, 18002475]

約数ペア:

[(1, 18002475), (3, 6000825), (5, 3600495), (9, 2000275), (15, 1200165), (25, 720099), (29, 620775), (31, 580725), (45, 400055), (75, 240033), (87, 206925), (89, 202275), (93, 193575), (145, 124155), (155, 116145), (225, 80011), (261, 68975), (267, 67425), (279, 64525), (435, 41385), (445, 40455), (465, 38715), (725, 24831), (775, 23229), (801, 22475), (899, 20025), (1305, 13795), (1335, 13485), (1395, 12905), (2175, 8277), (2225, 8091), (2325, 7743), (2581, 6975), (2697, 6675), (2759, 6525), (4005, 4495)]