678476253

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1\times {\mathrm{193}}^1$

素因数の和:458

約数の個数: 64

約数和(自身を含む): 1140285440

約数和(自身を除く): 461809187

約数列:

[1, 3, 7, 13, 21, 39, 79, 91, 163, 193, 237, 273, 489, 553, 579, 1027, 1141, 1351, 1659, 2119, 2509, 3081, 3423, 4053, 6357, 7189, 7527, 12877, 14833, 15247, 17563, 21567, 31459, 38631, 44499, 45741, 52689, 90139, 94377, 106729, 167401, 198211, 220213, 270417, 320187, 408967, 502203, 594633, 660639, 1171807, 1226901, 1387477, 2485261, 2862769, 3515421, 4162431, 7455783, 8588307, 17396827, 32308393, 52190481, 96925179, 226158751, 678476253]

約数ペア:

[(1, 678476253), (3, 226158751), (7, 96925179), (13, 52190481), (21, 32308393), (39, 17396827), (79, 8588307), (91, 7455783), (163, 4162431), (193, 3515421), (237, 2862769), (273, 2485261), (489, 1387477), (553, 1226901), (579, 1171807), (1027, 660639), (1141, 594633), (1351, 502203), (1659, 408967), (2119, 320187), (2509, 270417), (3081, 220213), (3423, 198211), (4053, 167401), (6357, 106729), (7189, 94377), (7527, 90139), (12877, 52689), (14833, 45741), (15247, 44499), (17563, 38631), (21567, 31459)]