240967740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{308933}}^1$

素因数の和:308958

約数の個数: 48

約数和(自身を含む): 726612768

約数和(自身を除く): 485645028

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, 308933, 617866, 926799, 1235732, 1544665, 1853598, 3089330, 3707196, 4016129, 4633995, 6178660, 8032258, 9267990, 12048387, 16064516, 18535980, 20080645, 24096774, 40161290, 48193548, 60241935, 80322580, 120483870, 240967740]

約数ペア:

[(1, 240967740), (2, 120483870), (3, 80322580), (4, 60241935), (5, 48193548), (6, 40161290), (10, 24096774), (12, 20080645), (13, 18535980), (15, 16064516), (20, 12048387), (26, 9267990), (30, 8032258), (39, 6178660), (52, 4633995), (60, 4016129), (65, 3707196), (78, 3089330), (130, 1853598), (156, 1544665), (195, 1235732), (260, 926799), (390, 617866), (780, 308933)]