81296696

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^2\times {\mathrm{571}}^1$

素因数の和:664

約数の個数: 48

約数和(自身を含む): 169008840

約数和(自身を除く): 87712144

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 74, 104, 148, 296, 481, 571, 962, 1142, 1369, 1924, 2284, 2738, 3848, 4568, 5476, 7423, 10952, 14846, 17797, 21127, 29692, 35594, 42254, 59384, 71188, 84508, 142376, 169016, 274651, 549302, 781699, 1098604, 1563398, 2197208, 3126796, 6253592, 10162087, 20324174, 40648348, 81296696]

約数ペア:

[(1, 81296696), (2, 40648348), (4, 20324174), (8, 10162087), (13, 6253592), (26, 3126796), (37, 2197208), (52, 1563398), (74, 1098604), (104, 781699), (148, 549302), (296, 274651), (481, 169016), (571, 142376), (962, 84508), (1142, 71188), (1369, 59384), (1924, 42254), (2284, 35594), (2738, 29692), (3848, 21127), (4568, 17797), (5476, 14846), (7423, 10952)]