15916425

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:159

約数の個数: 72

約数和(自身を含む): 31551552

約数和(自身を除く): 15635127

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 61, 71, 75, 105, 147, 175, 183, 213, 245, 305, 355, 427, 497, 525, 735, 915, 1065, 1225, 1281, 1491, 1525, 1775, 2135, 2485, 2989, 3479, 3675, 4331, 4575, 5325, 6405, 7455, 8967, 10437, 10675, 12425, 12993, 14945, 17395, 21655, 30317, 32025, 37275, 44835, 52185, 64965, 74725, 86975, 90951, 108275, 151585, 212219, 224175, 260925, 324825, 454755, 636657, 757925, 1061095, 2273775, 3183285, 5305475, 15916425]

約数ペア:

[(1, 15916425), (3, 5305475), (5, 3183285), (7, 2273775), (15, 1061095), (21, 757925), (25, 636657), (35, 454755), (49, 324825), (61, 260925), (71, 224175), (75, 212219), (105, 151585), (147, 108275), (175, 90951), (183, 86975), (213, 74725), (245, 64965), (305, 52185), (355, 44835), (427, 37275), (497, 32025), (525, 30317), (735, 21655), (915, 17395), (1065, 14945), (1225, 12993), (1281, 12425), (1491, 10675), (1525, 10437), (1775, 8967), (2135, 7455), (2485, 6405), (2989, 5325), (3479, 4575), (3675, 4331)]