642440960

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{10243}}^1$

素因数の和:10278

約数の個数: 108

約数和(自身を含む): 1790261928

約数和(自身を除く): 1147820968

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 392, 448, 490, 560, 640, 784, 896, 980, 1120, 1280, 1568, 1792, 1960, 2240, 3136, 3920, 4480, 6272, 7840, 8960, 10243, 12544, 15680, 20486, 31360, 40972, 51215, 62720, 71701, 81944, 102430, 143402, 163888, 204860, 286804, 327776, 358505, 409720, 501907, 573608, 655552, 717010, 819440, 1003814, 1147216, 1311104, 1434020, 1638880, 2007628, 2294432, 2509535, 2622208, 2868040, 3277760, 4015256, 4588864, 5019070, 5736080, 6555520, 8030512, 9177728, 10038140, 11472160, 13111040, 16061024, 18355456, 20076280, 22944320, 32122048, 40152560, 45888640, 64244096, 80305120, 91777280, 128488192, 160610240, 321220480, 642440960]

約数ペア:

[(1, 642440960), (2, 321220480), (4, 160610240), (5, 128488192), (7, 91777280), (8, 80305120), (10, 64244096), (14, 45888640), (16, 40152560), (20, 32122048), (28, 22944320), (32, 20076280), (35, 18355456), (40, 16061024), (49, 13111040), (56, 11472160), (64, 10038140), (70, 9177728), (80, 8030512), (98, 6555520), (112, 5736080), (128, 5019070), (140, 4588864), (160, 4015256), (196, 3277760), (224, 2868040), (245, 2622208), (256, 2509535), (280, 2294432), (320, 2007628), (392, 1638880), (448, 1434020), (490, 1311104), (560, 1147216), (640, 1003814), (784, 819440), (896, 717010), (980, 655552), (1120, 573608), (1280, 501907), (1568, 409720), (1792, 358505), (1960, 327776), (2240, 286804), (3136, 204860), (3920, 163888), (4480, 143402), (6272, 102430), (7840, 81944), (8960, 71701), (10243, 62720), (12544, 51215), (15680, 40972), (20486, 31360)]