281623780

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{2879}}^1$

素因数の和:3028

約数の個数: 48

約数和(自身を含む): 608670720

約数和(自身を除く): 327046940

約数列:

[1, 2, 4, 5, 10, 20, 67, 73, 134, 146, 268, 292, 335, 365, 670, 730, 1340, 1460, 2879, 4891, 5758, 9782, 11516, 14395, 19564, 24455, 28790, 48910, 57580, 97820, 192893, 210167, 385786, 420334, 771572, 840668, 964465, 1050835, 1928930, 2101670, 3857860, 4203340, 14081189, 28162378, 56324756, 70405945, 140811890, 281623780]

約数ペア:

[(1, 281623780), (2, 140811890), (4, 70405945), (5, 56324756), (10, 28162378), (20, 14081189), (67, 4203340), (73, 3857860), (134, 2101670), (146, 1928930), (268, 1050835), (292, 964465), (335, 840668), (365, 771572), (670, 420334), (730, 385786), (1340, 210167), (1460, 192893), (2879, 97820), (4891, 57580), (5758, 48910), (9782, 28790), (11516, 24455), (14395, 19564)]