31757175

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:233

約数の個数: 72

約数和(自身を含む): 61127040

約数和(自身を除く): 29369865

約数列:

[1, 3, 5, 9, 15, 25, 29, 31, 45, 75, 87, 93, 145, 155, 157, 225, 261, 279, 435, 465, 471, 725, 775, 785, 899, 1305, 1395, 1413, 2175, 2325, 2355, 2697, 3925, 4495, 4553, 4867, 6525, 6975, 7065, 8091, 11775, 13485, 13659, 14601, 22475, 22765, 24335, 35325, 40455, 40977, 43803, 67425, 68295, 73005, 113825, 121675, 141143, 202275, 204885, 219015, 341475, 365025, 423429, 705715, 1024425, 1095075, 1270287, 2117145, 3528575, 6351435, 10585725, 31757175]

約数ペア:

[(1, 31757175), (3, 10585725), (5, 6351435), (9, 3528575), (15, 2117145), (25, 1270287), (29, 1095075), (31, 1024425), (45, 705715), (75, 423429), (87, 365025), (93, 341475), (145, 219015), (155, 204885), (157, 202275), (225, 141143), (261, 121675), (279, 113825), (435, 73005), (465, 68295), (471, 67425), (725, 43803), (775, 40977), (785, 40455), (899, 35325), (1305, 24335), (1395, 22765), (1413, 22475), (2175, 14601), (2325, 13659), (2355, 13485), (2697, 11775), (3925, 8091), (4495, 7065), (4553, 6975), (4867, 6525)]