261796340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{34721}}^1$

素因数の和:34772

約数の個数: 48

約数和(自身を含む): 612496080

約数和(自身を除く): 350699740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 260, 290, 377, 580, 754, 1508, 1885, 3770, 7540, 34721, 69442, 138884, 173605, 347210, 451373, 694420, 902746, 1006909, 1805492, 2013818, 2256865, 4027636, 4513730, 5034545, 9027460, 10069090, 13089817, 20138180, 26179634, 52359268, 65449085, 130898170, 261796340]

約数ペア:

[(1, 261796340), (2, 130898170), (4, 65449085), (5, 52359268), (10, 26179634), (13, 20138180), (20, 13089817), (26, 10069090), (29, 9027460), (52, 5034545), (58, 4513730), (65, 4027636), (116, 2256865), (130, 2013818), (145, 1805492), (260, 1006909), (290, 902746), (377, 694420), (580, 451373), (754, 347210), (1508, 173605), (1885, 138884), (3770, 69442), (7540, 34721)]