291863780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{8839}}^1$

素因数の和:8988

約数の個数: 48

約数和(自身を含む): 665333760

約数和(自身を除く): 373469980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 127, 130, 254, 260, 508, 635, 1270, 1651, 2540, 3302, 6604, 8255, 8839, 16510, 17678, 33020, 35356, 44195, 88390, 114907, 176780, 229814, 459628, 574535, 1122553, 1149070, 2245106, 2298140, 4490212, 5612765, 11225530, 14593189, 22451060, 29186378, 58372756, 72965945, 145931890, 291863780]

約数ペア:

[(1, 291863780), (2, 145931890), (4, 72965945), (5, 58372756), (10, 29186378), (13, 22451060), (20, 14593189), (26, 11225530), (52, 5612765), (65, 4490212), (127, 2298140), (130, 2245106), (254, 1149070), (260, 1122553), (508, 574535), (635, 459628), (1270, 229814), (1651, 176780), (2540, 114907), (3302, 88390), (6604, 44195), (8255, 35356), (8839, 33020), (16510, 17678)]