131312870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{571}}^1$

素因数の和:681

約数の個数: 64

約数和(自身を含む): 268107840

約数和(自身を除く): 136794970

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 61, 65, 122, 130, 145, 290, 305, 377, 571, 610, 754, 793, 1142, 1586, 1769, 1885, 2855, 3538, 3770, 3965, 5710, 7423, 7930, 8845, 14846, 16559, 17690, 22997, 33118, 34831, 37115, 45994, 69662, 74230, 82795, 114985, 165590, 174155, 215267, 229970, 348310, 430534, 452803, 905606, 1010099, 1076335, 2020198, 2152670, 2264015, 4528030, 5050495, 10100990, 13131287, 26262574, 65656435, 131312870]

約数ペア:

[(1, 131312870), (2, 65656435), (5, 26262574), (10, 13131287), (13, 10100990), (26, 5050495), (29, 4528030), (58, 2264015), (61, 2152670), (65, 2020198), (122, 1076335), (130, 1010099), (145, 905606), (290, 452803), (305, 430534), (377, 348310), (571, 229970), (610, 215267), (754, 174155), (793, 165590), (1142, 114985), (1586, 82795), (1769, 74230), (1885, 69662), (2855, 45994), (3538, 37115), (3770, 34831), (3965, 33118), (5710, 22997), (7423, 17690), (7930, 16559), (8845, 14846)]