80781400

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{8243}}^1$

素因数の和:8273

約数の個数: 72

約数和(自身を含む): 218507220

約数和(自身を除く): 137725820

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 140, 175, 196, 200, 245, 280, 350, 392, 490, 700, 980, 1225, 1400, 1960, 2450, 4900, 8243, 9800, 16486, 32972, 41215, 57701, 65944, 82430, 115402, 164860, 206075, 230804, 288505, 329720, 403907, 412150, 461608, 577010, 807814, 824300, 1154020, 1442525, 1615628, 1648600, 2019535, 2308040, 2885050, 3231256, 4039070, 5770100, 8078140, 10097675, 11540200, 16156280, 20195350, 40390700, 80781400]

約数ペア:

[(1, 80781400), (2, 40390700), (4, 20195350), (5, 16156280), (7, 11540200), (8, 10097675), (10, 8078140), (14, 5770100), (20, 4039070), (25, 3231256), (28, 2885050), (35, 2308040), (40, 2019535), (49, 1648600), (50, 1615628), (56, 1442525), (70, 1154020), (98, 824300), (100, 807814), (140, 577010), (175, 461608), (196, 412150), (200, 403907), (245, 329720), (280, 288505), (350, 230804), (392, 206075), (490, 164860), (700, 115402), (980, 82430), (1225, 65944), (1400, 57701), (1960, 41215), (2450, 32972), (4900, 16486), (8243, 9800)]