871987155

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{977}}^1$

素因数の和:1220

約数の個数: 64

約数和(自身を含む): 1577318400

約数和(自身を除く): 705331245

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 115, 195, 199, 299, 345, 597, 897, 977, 995, 1495, 2587, 2931, 2985, 4485, 4577, 4885, 7761, 12701, 12935, 13731, 14655, 22471, 22885, 38103, 38805, 59501, 63505, 67413, 68655, 112355, 178503, 190515, 194423, 292123, 297505, 337065, 583269, 876369, 892515, 972115, 1460615, 2527499, 2916345, 4381845, 4471729, 7582497, 12637495, 13415187, 22358645, 37912485, 58132477, 67075935, 174397431, 290662385, 871987155]

約数ペア:

[(1, 871987155), (3, 290662385), (5, 174397431), (13, 67075935), (15, 58132477), (23, 37912485), (39, 22358645), (65, 13415187), (69, 12637495), (115, 7582497), (195, 4471729), (199, 4381845), (299, 2916345), (345, 2527499), (597, 1460615), (897, 972115), (977, 892515), (995, 876369), (1495, 583269), (2587, 337065), (2931, 297505), (2985, 292123), (4485, 194423), (4577, 190515), (4885, 178503), (7761, 112355), (12701, 68655), (12935, 67413), (13731, 63505), (14655, 59501), (22471, 38805), (22885, 38103)]