668889390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{4409}}^1$

素因数の和:4821

約数の個数: 64

約数和(自身を含む): 1733659200

約数和(自身を除く): 1064769810

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 389, 390, 778, 1167, 1945, 2334, 3890, 4409, 5057, 5835, 8818, 10114, 11670, 13227, 15171, 22045, 25285, 26454, 30342, 44090, 50570, 57317, 66135, 75855, 114634, 132270, 151710, 171951, 286585, 343902, 573170, 859755, 1715101, 1719510, 3430202, 5145303, 8575505, 10290606, 17151010, 22296313, 25726515, 44592626, 51453030, 66888939, 111481565, 133777878, 222963130, 334444695, 668889390]

約数ペア:

[(1, 668889390), (2, 334444695), (3, 222963130), (5, 133777878), (6, 111481565), (10, 66888939), (13, 51453030), (15, 44592626), (26, 25726515), (30, 22296313), (39, 17151010), (65, 10290606), (78, 8575505), (130, 5145303), (195, 3430202), (389, 1719510), (390, 1715101), (778, 859755), (1167, 573170), (1945, 343902), (2334, 286585), (3890, 171951), (4409, 151710), (5057, 132270), (5835, 114634), (8818, 75855), (10114, 66135), (11670, 57317), (13227, 50570), (15171, 44090), (22045, 30342), (25285, 26454)]