77831728

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{977}}^1$

素因数の和:1381

約数の個数: 40

約数和(自身を含む): 162989568

約数和(自身を除く): 85157840

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 383, 766, 977, 1532, 1954, 3064, 3908, 4979, 6128, 7816, 9958, 12701, 15632, 19916, 25402, 39832, 50804, 79664, 101608, 203216, 374191, 748382, 1496764, 2993528, 4864483, 5987056, 9728966, 19457932, 38915864, 77831728]

約数ペア:

[(1, 77831728), (2, 38915864), (4, 19457932), (8, 9728966), (13, 5987056), (16, 4864483), (26, 2993528), (52, 1496764), (104, 748382), (208, 374191), (383, 203216), (766, 101608), (977, 79664), (1532, 50804), (1954, 39832), (3064, 25402), (3908, 19916), (4979, 15632), (6128, 12701), (7816, 9958)]