205536380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{1601}}^1$

素因数の和:1755

約数の個数: 72

約数和(自身を含む): 506244816

約数和(自身を除く): 300708436

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 131, 140, 196, 245, 262, 490, 524, 655, 917, 980, 1310, 1601, 1834, 2620, 3202, 3668, 4585, 6404, 6419, 8005, 9170, 11207, 12838, 16010, 18340, 22414, 25676, 32020, 32095, 44828, 56035, 64190, 78449, 112070, 128380, 156898, 209731, 224140, 313796, 392245, 419462, 784490, 838924, 1048655, 1468117, 1568980, 2097310, 2936234, 4194620, 5872468, 7340585, 10276819, 14681170, 20553638, 29362340, 41107276, 51384095, 102768190, 205536380]

約数ペア:

[(1, 205536380), (2, 102768190), (4, 51384095), (5, 41107276), (7, 29362340), (10, 20553638), (14, 14681170), (20, 10276819), (28, 7340585), (35, 5872468), (49, 4194620), (70, 2936234), (98, 2097310), (131, 1568980), (140, 1468117), (196, 1048655), (245, 838924), (262, 784490), (490, 419462), (524, 392245), (655, 313796), (917, 224140), (980, 209731), (1310, 156898), (1601, 128380), (1834, 112070), (2620, 78449), (3202, 64190), (3668, 56035), (4585, 44828), (6404, 32095), (6419, 32020), (8005, 25676), (9170, 22414), (11207, 18340), (12838, 16010)]