281722740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{361183}}^1$

素因数の和:361208

約数の個数: 48

約数和(自身を含む): 849504768

約数和(自身を除く): 567782028

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, 361183, 722366, 1083549, 1444732, 1805915, 2167098, 3611830, 4334196, 4695379, 5417745, 7223660, 9390758, 10835490, 14086137, 18781516, 21670980, 23476895, 28172274, 46953790, 56344548, 70430685, 93907580, 140861370, 281722740]

約数ペア:

[(1, 281722740), (2, 140861370), (3, 93907580), (4, 70430685), (5, 56344548), (6, 46953790), (10, 28172274), (12, 23476895), (13, 21670980), (15, 18781516), (20, 14086137), (26, 10835490), (30, 9390758), (39, 7223660), (52, 5417745), (60, 4695379), (65, 4334196), (78, 3611830), (130, 2167098), (156, 1805915), (195, 1444732), (260, 1083549), (390, 722366), (780, 361183)]