1280457790

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1481}}^1\times {\mathrm{2789}}^1$

素因数の和:4308

約数の個数: 32

約数和(自身を含む): 2381633280

約数和(自身を除く): 1101175490

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 1481, 2789, 2962, 5578, 7405, 13945, 14810, 27890, 45911, 86459, 91822, 172918, 229555, 432295, 459110, 864590, 4130509, 8261018, 20652545, 41305090, 128045779, 256091558, 640228895, 1280457790]

約数ペア:

[(1, 1280457790), (2, 640228895), (5, 256091558), (10, 128045779), (31, 41305090), (62, 20652545), (155, 8261018), (310, 4130509), (1481, 864590), (2789, 459110), (2962, 432295), (5578, 229555), (7405, 172918), (13945, 91822), (14810, 86459), (27890, 45911)]