198788460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{254857}}^1$

素因数の和:254882

約数の個数: 48

約数和(自身を含む): 599426016

約数和(自身を除く): 400637556

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 254857, 509714, 764571, 1019428, 1274285, 1529142, 2548570, 3058284, 3313141, 3822855, 5097140, 6626282, 7645710, 9939423, 13252564, 15291420, 16565705, 19878846, 33131410, 39757692, 49697115, 66262820, 99394230, 198788460]

約数ペア:

[(1, 198788460), (2, 99394230), (3, 66262820), (4, 49697115), (5, 39757692), (6, 33131410), (10, 19878846), (12, 16565705), (13, 15291420), (15, 13252564), (20, 9939423), (26, 7645710), (30, 6626282), (39, 5097140), (52, 3822855), (60, 3313141), (65, 3058284), (78, 2548570), (130, 1529142), (156, 1274285), (195, 1019428), (260, 764571), (390, 509714), (780, 254857)]