31312575

素因数分解:

$3^4\times 5^2\times 7^1\times {\mathrm{47}}^2$

素因数の和:123

約数の個数: 90

約数和(自身を含む): 67728056

約数和(自身を除く): 36415481

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 47, 63, 75, 81, 105, 135, 141, 175, 189, 225, 235, 315, 329, 405, 423, 525, 567, 675, 705, 945, 987, 1175, 1269, 1575, 1645, 2025, 2115, 2209, 2835, 2961, 3525, 3807, 4725, 4935, 6345, 6627, 8225, 8883, 10575, 11045, 14175, 14805, 15463, 19035, 19881, 24675, 26649, 31725, 33135, 44415, 46389, 55225, 59643, 74025, 77315, 95175, 99405, 133245, 139167, 165675, 178929, 222075, 231945, 298215, 386575, 417501, 497025, 666225, 695835, 894645, 1159725, 1252503, 1491075, 2087505, 3479175, 4473225, 6262515, 10437525, 31312575]

約数ペア:

[(1, 31312575), (3, 10437525), (5, 6262515), (7, 4473225), (9, 3479175), (15, 2087505), (21, 1491075), (25, 1252503), (27, 1159725), (35, 894645), (45, 695835), (47, 666225), (63, 497025), (75, 417501), (81, 386575), (105, 298215), (135, 231945), (141, 222075), (175, 178929), (189, 165675), (225, 139167), (235, 133245), (315, 99405), (329, 95175), (405, 77315), (423, 74025), (525, 59643), (567, 55225), (675, 46389), (705, 44415), (945, 33135), (987, 31725), (1175, 26649), (1269, 24675), (1575, 19881), (1645, 19035), (2025, 15463), (2115, 14805), (2209, 14175), (2835, 11045), (2961, 10575), (3525, 8883), (3807, 8225), (4725, 6627), (4935, 6345)]