16485820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{389}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 37608480

約数和(自身を除く): 21122660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 163, 260, 326, 389, 652, 778, 815, 1556, 1630, 1945, 2119, 3260, 3890, 4238, 5057, 7780, 8476, 10114, 10595, 20228, 21190, 25285, 42380, 50570, 63407, 101140, 126814, 253628, 317035, 634070, 824291, 1268140, 1648582, 3297164, 4121455, 8242910, 16485820]

約数ペア:

[(1, 16485820), (2, 8242910), (4, 4121455), (5, 3297164), (10, 1648582), (13, 1268140), (20, 824291), (26, 634070), (52, 317035), (65, 253628), (130, 126814), (163, 101140), (260, 63407), (326, 50570), (389, 42380), (652, 25285), (778, 21190), (815, 20228), (1556, 10595), (1630, 10114), (1945, 8476), (2119, 7780), (3260, 5057), (3890, 4238)]