204433220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{1283}}^1$

素因数の和:1580

約数の個数: 48

約数和(自身を含む): 445229568

約数和(自身を除く): 240796348

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 257, 310, 514, 620, 1028, 1283, 1285, 2566, 2570, 5132, 5140, 6415, 7967, 12830, 15934, 25660, 31868, 39773, 39835, 79546, 79670, 159092, 159340, 198865, 329731, 397730, 659462, 795460, 1318924, 1648655, 3297310, 6594620, 10221661, 20443322, 40886644, 51108305, 102216610, 204433220]

約数ペア:

[(1, 204433220), (2, 102216610), (4, 51108305), (5, 40886644), (10, 20443322), (20, 10221661), (31, 6594620), (62, 3297310), (124, 1648655), (155, 1318924), (257, 795460), (310, 659462), (514, 397730), (620, 329731), (1028, 198865), (1283, 159340), (1285, 159092), (2566, 79670), (2570, 79546), (5132, 39835), (5140, 39773), (6415, 31868), (7967, 25660), (12830, 15934)]