78253780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:329

約数の個数: 96

約数和(自身を含む): 191640960

約数和(自身を除く): 113387180

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 97, 110, 190, 193, 194, 209, 220, 380, 386, 388, 418, 485, 772, 836, 965, 970, 1045, 1067, 1843, 1930, 1940, 2090, 2123, 2134, 3667, 3686, 3860, 4180, 4246, 4268, 5335, 7334, 7372, 8492, 9215, 10615, 10670, 14668, 18335, 18430, 18721, 20273, 21230, 21340, 36670, 36860, 37442, 40337, 40546, 42460, 73340, 74884, 80674, 81092, 93605, 101365, 161348, 187210, 201685, 202730, 205931, 355699, 374420, 403370, 405460, 411862, 711398, 806740, 823724, 1029655, 1422796, 1778495, 2059310, 3556990, 3912689, 4118620, 7113980, 7825378, 15650756, 19563445, 39126890, 78253780]

約数ペア:

[(1, 78253780), (2, 39126890), (4, 19563445), (5, 15650756), (10, 7825378), (11, 7113980), (19, 4118620), (20, 3912689), (22, 3556990), (38, 2059310), (44, 1778495), (55, 1422796), (76, 1029655), (95, 823724), (97, 806740), (110, 711398), (190, 411862), (193, 405460), (194, 403370), (209, 374420), (220, 355699), (380, 205931), (386, 202730), (388, 201685), (418, 187210), (485, 161348), (772, 101365), (836, 93605), (965, 81092), (970, 80674), (1045, 74884), (1067, 73340), (1843, 42460), (1930, 40546), (1940, 40337), (2090, 37442), (2123, 36860), (2134, 36670), (3667, 21340), (3686, 21230), (3860, 20273), (4180, 18721), (4246, 18430), (4268, 18335), (5335, 14668), (7334, 10670), (7372, 10615), (8492, 9215)]