12919400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{4969}}^1$

素因数の和:4998

約数の個数: 48

約数和(自身を含む): 32354700

約数和(自身を除く): 19435300

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 4969, 9938, 19876, 24845, 39752, 49690, 64597, 99380, 124225, 129194, 198760, 248450, 258388, 322985, 496900, 516776, 645970, 993800, 1291940, 1614925, 2583880, 3229850, 6459700, 12919400]

約数ペア:

[(1, 12919400), (2, 6459700), (4, 3229850), (5, 2583880), (8, 1614925), (10, 1291940), (13, 993800), (20, 645970), (25, 516776), (26, 496900), (40, 322985), (50, 258388), (52, 248450), (65, 198760), (100, 129194), (104, 124225), (130, 99380), (200, 64597), (260, 49690), (325, 39752), (520, 24845), (650, 19876), (1300, 9938), (2600, 4969)]