128610040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{1481}}^1$

素因数の和:1672

約数の個数: 64

約数和(自身を含む): 313709760

約数和(自身を除く): 185099720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 167, 260, 334, 520, 668, 835, 1336, 1481, 1670, 2171, 2962, 3340, 4342, 5924, 6680, 7405, 8684, 10855, 11848, 14810, 17368, 19253, 21710, 29620, 38506, 43420, 59240, 77012, 86840, 96265, 154024, 192530, 247327, 385060, 494654, 770120, 989308, 1236635, 1978616, 2473270, 3215251, 4946540, 6430502, 9893080, 12861004, 16076255, 25722008, 32152510, 64305020, 128610040]

約数ペア:

[(1, 128610040), (2, 64305020), (4, 32152510), (5, 25722008), (8, 16076255), (10, 12861004), (13, 9893080), (20, 6430502), (26, 4946540), (40, 3215251), (52, 2473270), (65, 1978616), (104, 1236635), (130, 989308), (167, 770120), (260, 494654), (334, 385060), (520, 247327), (668, 192530), (835, 154024), (1336, 96265), (1481, 86840), (1670, 77012), (2171, 59240), (2962, 43420), (3340, 38506), (4342, 29620), (5924, 21710), (6680, 19253), (7405, 17368), (8684, 14810), (10855, 11848)]