215542425

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{89}}^1\times {\mathrm{659}}^1$

素因数の和:775

約数の個数: 72

約数和(自身を含む): 419839200

約数和(自身を除く): 204296775

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 75, 89, 105, 147, 175, 245, 267, 445, 525, 623, 659, 735, 1225, 1335, 1869, 1977, 2225, 3115, 3295, 3675, 4361, 4613, 6675, 9345, 9885, 13083, 13839, 15575, 16475, 21805, 23065, 32291, 46725, 49425, 58651, 65415, 69195, 96873, 109025, 115325, 161455, 175953, 293255, 327075, 345975, 410557, 484365, 807275, 879765, 1231671, 1466275, 2052785, 2421825, 2873899, 4398825, 6158355, 8621697, 10263925, 14369495, 30791775, 43108485, 71847475, 215542425]

約数ペア:

[(1, 215542425), (3, 71847475), (5, 43108485), (7, 30791775), (15, 14369495), (21, 10263925), (25, 8621697), (35, 6158355), (49, 4398825), (75, 2873899), (89, 2421825), (105, 2052785), (147, 1466275), (175, 1231671), (245, 879765), (267, 807275), (445, 484365), (525, 410557), (623, 345975), (659, 327075), (735, 293255), (1225, 175953), (1335, 161455), (1869, 115325), (1977, 109025), (2225, 96873), (3115, 69195), (3295, 65415), (3675, 58651), (4361, 49425), (4613, 46725), (6675, 32291), (9345, 23065), (9885, 21805), (13083, 16475), (13839, 15575)]