200788900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{109}}^2$

素因数の和:258

約数の個数: 81

約数和(自身を含む): 476174601

約数和(自身を除く): 275385701

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 109, 130, 169, 218, 260, 325, 338, 436, 545, 650, 676, 845, 1090, 1300, 1417, 1690, 2180, 2725, 2834, 3380, 4225, 5450, 5668, 7085, 8450, 10900, 11881, 14170, 16900, 18421, 23762, 28340, 35425, 36842, 47524, 59405, 70850, 73684, 92105, 118810, 141700, 154453, 184210, 237620, 297025, 308906, 368420, 460525, 594050, 617812, 772265, 921050, 1188100, 1544530, 1842100, 2007889, 3089060, 3861325, 4015778, 7722650, 8031556, 10039445, 15445300, 20078890, 40157780, 50197225, 100394450, 200788900]

約数ペア:

[(1, 200788900), (2, 100394450), (4, 50197225), (5, 40157780), (10, 20078890), (13, 15445300), (20, 10039445), (25, 8031556), (26, 7722650), (50, 4015778), (52, 3861325), (65, 3089060), (100, 2007889), (109, 1842100), (130, 1544530), (169, 1188100), (218, 921050), (260, 772265), (325, 617812), (338, 594050), (436, 460525), (545, 368420), (650, 308906), (676, 297025), (845, 237620), (1090, 184210), (1300, 154453), (1417, 141700), (1690, 118810), (2180, 92105), (2725, 73684), (2834, 70850), (3380, 59405), (4225, 47524), (5450, 36842), (5668, 35425), (7085, 28340), (8450, 23762), (10900, 18421), (11881, 16900)]