20400382470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{499}}^1\times {\mathrm{104827}}^1$

素因数の和:105349

約数の個数: 64

約数和(自身を含む): 52833312000

約数和(自身を除く): 32432929530

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 499, 998, 1497, 2495, 2994, 4990, 6487, 7485, 12974, 14970, 19461, 32435, 38922, 64870, 97305, 104827, 194610, 209654, 314481, 524135, 628962, 1048270, 1362751, 1572405, 2725502, 3144810, 4088253, 6813755, 8176506, 13627510, 20441265, 40882530, 52308673, 104617346, 156926019, 261543365, 313852038, 523086730, 680012749, 784630095, 1360025498, 1569260190, 2040038247, 3400063745, 4080076494, 6800127490, 10200191235, 20400382470]

約数ペア:

[(1, 20400382470), (2, 10200191235), (3, 6800127490), (5, 4080076494), (6, 3400063745), (10, 2040038247), (13, 1569260190), (15, 1360025498), (26, 784630095), (30, 680012749), (39, 523086730), (65, 313852038), (78, 261543365), (130, 156926019), (195, 104617346), (390, 52308673), (499, 40882530), (998, 20441265), (1497, 13627510), (2495, 8176506), (2994, 6813755), (4990, 4088253), (6487, 3144810), (7485, 2725502), (12974, 1572405), (14970, 1362751), (19461, 1048270), (32435, 628962), (38922, 524135), (64870, 314481), (97305, 209654), (104827, 194610)]