118419380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1\times {\mathrm{491}}^1$

素因数の和:920

約数の個数: 48

約数和(自身を含む): 257886720

約数和(自身を除く): 139467340

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 389, 491, 620, 778, 982, 1556, 1945, 1964, 2455, 3890, 4910, 7780, 9820, 12059, 15221, 24118, 30442, 48236, 60295, 60884, 76105, 120590, 152210, 190999, 241180, 304420, 381998, 763996, 954995, 1909990, 3819980, 5920969, 11841938, 23683876, 29604845, 59209690, 118419380]

約数ペア:

[(1, 118419380), (2, 59209690), (4, 29604845), (5, 23683876), (10, 11841938), (20, 5920969), (31, 3819980), (62, 1909990), (124, 954995), (155, 763996), (310, 381998), (389, 304420), (491, 241180), (620, 190999), (778, 152210), (982, 120590), (1556, 76105), (1945, 60884), (1964, 60295), (2455, 48236), (3890, 30442), (4910, 24118), (7780, 15221), (9820, 12059)]