128356725

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{53}}^1\times {\mathrm{659}}^1$

素因数の和:739

約数の個数: 72

約数和(自身を含む): 251903520

約数和(自身を除く): 123546795

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 53, 75, 105, 147, 159, 175, 245, 265, 371, 525, 659, 735, 795, 1113, 1225, 1325, 1855, 1977, 2597, 3295, 3675, 3975, 4613, 5565, 7791, 9275, 9885, 12985, 13839, 16475, 23065, 27825, 32291, 34927, 38955, 49425, 64925, 69195, 96873, 104781, 115325, 161455, 174635, 194775, 244489, 345975, 484365, 523905, 733467, 807275, 873175, 1222445, 1711423, 2421825, 2619525, 3667335, 5134269, 6112225, 8557115, 18336675, 25671345, 42785575, 128356725]

約数ペア:

[(1, 128356725), (3, 42785575), (5, 25671345), (7, 18336675), (15, 8557115), (21, 6112225), (25, 5134269), (35, 3667335), (49, 2619525), (53, 2421825), (75, 1711423), (105, 1222445), (147, 873175), (159, 807275), (175, 733467), (245, 523905), (265, 484365), (371, 345975), (525, 244489), (659, 194775), (735, 174635), (795, 161455), (1113, 115325), (1225, 104781), (1325, 96873), (1855, 69195), (1977, 64925), (2597, 49425), (3295, 38955), (3675, 34927), (3975, 32291), (4613, 27825), (5565, 23065), (7791, 16475), (9275, 13839), (9885, 12985)]