31913775

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:185

約数の個数: 72

約数和(自身を含む): 60836880

約数和(自身を除く): 28923105

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 67, 73, 75, 87, 145, 201, 219, 225, 261, 335, 365, 435, 603, 657, 725, 1005, 1095, 1305, 1675, 1825, 1943, 2117, 2175, 3015, 3285, 4891, 5025, 5475, 5829, 6351, 6525, 9715, 10585, 14673, 15075, 16425, 17487, 19053, 24455, 29145, 31755, 44019, 48575, 52925, 73365, 87435, 95265, 122275, 141839, 145725, 158775, 220095, 366825, 425517, 437175, 476325, 709195, 1100475, 1276551, 2127585, 3545975, 6382755, 10637925, 31913775]

約数ペア:

[(1, 31913775), (3, 10637925), (5, 6382755), (9, 3545975), (15, 2127585), (25, 1276551), (29, 1100475), (45, 709195), (67, 476325), (73, 437175), (75, 425517), (87, 366825), (145, 220095), (201, 158775), (219, 145725), (225, 141839), (261, 122275), (335, 95265), (365, 87435), (435, 73365), (603, 52925), (657, 48575), (725, 44019), (1005, 31755), (1095, 29145), (1305, 24455), (1675, 19053), (1825, 17487), (1943, 16425), (2117, 15075), (2175, 14673), (3015, 10585), (3285, 9715), (4891, 6525), (5025, 6351), (5475, 5829)]