278636940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{26237}}^1$

素因数の和:26311

約数の個数: 72

約数和(自身を含む): 859556880

約数和(自身を除く): 580919940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 59, 60, 90, 118, 177, 180, 236, 295, 354, 531, 590, 708, 885, 1062, 1180, 1770, 2124, 2655, 3540, 5310, 10620, 26237, 52474, 78711, 104948, 131185, 157422, 236133, 262370, 314844, 393555, 472266, 524740, 787110, 944532, 1180665, 1547983, 1574220, 2361330, 3095966, 4643949, 4722660, 6191932, 7739915, 9287898, 13931847, 15479830, 18575796, 23219745, 27863694, 30959660, 46439490, 55727388, 69659235, 92878980, 139318470, 278636940]

約数ペア:

[(1, 278636940), (2, 139318470), (3, 92878980), (4, 69659235), (5, 55727388), (6, 46439490), (9, 30959660), (10, 27863694), (12, 23219745), (15, 18575796), (18, 15479830), (20, 13931847), (30, 9287898), (36, 7739915), (45, 6191932), (59, 4722660), (60, 4643949), (90, 3095966), (118, 2361330), (177, 1574220), (180, 1547983), (236, 1180665), (295, 944532), (354, 787110), (531, 524740), (590, 472266), (708, 393555), (885, 314844), (1062, 262370), (1180, 236133), (1770, 157422), (2124, 131185), (2655, 104948), (3540, 78711), (5310, 52474), (10620, 26237)]