163909540

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1\times {\mathrm{367}}^1$

素因数の和:676

約数の個数: 48

約数和(自身を含む): 349800192

約数和(自身を除く): 185890652

約数列:

[1, 2, 4, 5, 10, 20, 137, 163, 274, 326, 367, 548, 652, 685, 734, 815, 1370, 1468, 1630, 1835, 2740, 3260, 3670, 7340, 22331, 44662, 50279, 59821, 89324, 100558, 111655, 119642, 201116, 223310, 239284, 251395, 299105, 446620, 502790, 598210, 1005580, 1196420, 8195477, 16390954, 32781908, 40977385, 81954770, 163909540]

約数ペア:

[(1, 163909540), (2, 81954770), (4, 40977385), (5, 32781908), (10, 16390954), (20, 8195477), (137, 1196420), (163, 1005580), (274, 598210), (326, 502790), (367, 446620), (548, 299105), (652, 251395), (685, 239284), (734, 223310), (815, 201116), (1370, 119642), (1468, 111655), (1630, 100558), (1835, 89324), (2740, 59821), (3260, 50279), (3670, 44662), (7340, 22331)]