12978550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{487}}^1$

素因数の和:553

約数の個数: 48

約数和(自身を含む): 26685792

約数和(自身を除く): 13707242

約数列:

[1, 2, 5, 10, 13, 25, 26, 41, 50, 65, 82, 130, 205, 325, 410, 487, 533, 650, 974, 1025, 1066, 2050, 2435, 2665, 4870, 5330, 6331, 12175, 12662, 13325, 19967, 24350, 26650, 31655, 39934, 63310, 99835, 158275, 199670, 259571, 316550, 499175, 519142, 998350, 1297855, 2595710, 6489275, 12978550]

約数ペア:

[(1, 12978550), (2, 6489275), (5, 2595710), (10, 1297855), (13, 998350), (25, 519142), (26, 499175), (41, 316550), (50, 259571), (65, 199670), (82, 158275), (130, 99835), (205, 63310), (325, 39934), (410, 31655), (487, 26650), (533, 24350), (650, 19967), (974, 13325), (1025, 12662), (1066, 12175), (2050, 6331), (2435, 5330), (2665, 4870)]