20626970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1193}}^1$

素因数の和:1239

約数の個数: 64

約数和(自身を含む): 48142080

約数和(自身を除く): 27515110

約数列:

[1, 2, 5, 7, 10, 13, 14, 19, 26, 35, 38, 65, 70, 91, 95, 130, 133, 182, 190, 247, 266, 455, 494, 665, 910, 1193, 1235, 1330, 1729, 2386, 2470, 3458, 5965, 8351, 8645, 11930, 15509, 16702, 17290, 22667, 31018, 41755, 45334, 77545, 83510, 108563, 113335, 155090, 158669, 217126, 226670, 294671, 317338, 542815, 589342, 793345, 1085630, 1473355, 1586690, 2062697, 2946710, 4125394, 10313485, 20626970]

約数ペア:

[(1, 20626970), (2, 10313485), (5, 4125394), (7, 2946710), (10, 2062697), (13, 1586690), (14, 1473355), (19, 1085630), (26, 793345), (35, 589342), (38, 542815), (65, 317338), (70, 294671), (91, 226670), (95, 217126), (130, 158669), (133, 155090), (182, 113335), (190, 108563), (247, 83510), (266, 77545), (455, 45334), (494, 41755), (665, 31018), (910, 22667), (1193, 17290), (1235, 16702), (1330, 15509), (1729, 11930), (2386, 8645), (2470, 8351), (3458, 5965)]