7914140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{499}}^1$

素因数の和:582

約数の個数: 48

約数和(自身を含む): 18228000

約数和(自身を除く): 10313860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 499, 610, 793, 998, 1220, 1586, 1996, 2495, 3172, 3965, 4990, 6487, 7930, 9980, 12974, 15860, 25948, 30439, 32435, 60878, 64870, 121756, 129740, 152195, 304390, 395707, 608780, 791414, 1582828, 1978535, 3957070, 7914140]

約数ペア:

[(1, 7914140), (2, 3957070), (4, 1978535), (5, 1582828), (10, 791414), (13, 608780), (20, 395707), (26, 304390), (52, 152195), (61, 129740), (65, 121756), (122, 64870), (130, 60878), (244, 32435), (260, 30439), (305, 25948), (499, 15860), (610, 12974), (793, 9980), (998, 7930), (1220, 6487), (1586, 4990), (1996, 3965), (2495, 3172)]