388706890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{1187}}^1$

素因数の和:1447

約数の個数: 64

約数和(自身を含む): 826277760

約数和(自身を除く): 437570870

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 229, 286, 458, 715, 1145, 1187, 1430, 2290, 2374, 2519, 2977, 5038, 5935, 5954, 11870, 12595, 13057, 14885, 15431, 25190, 26114, 29770, 30862, 32747, 65285, 65494, 77155, 130570, 154310, 163735, 169741, 271823, 327470, 339482, 543646, 848705, 1359115, 1697410, 2718230, 2990053, 3533699, 5980106, 7067398, 14950265, 17668495, 29900530, 35336990, 38870689, 77741378, 194353445, 388706890]

約数ペア:

[(1, 388706890), (2, 194353445), (5, 77741378), (10, 38870689), (11, 35336990), (13, 29900530), (22, 17668495), (26, 14950265), (55, 7067398), (65, 5980106), (110, 3533699), (130, 2990053), (143, 2718230), (229, 1697410), (286, 1359115), (458, 848705), (715, 543646), (1145, 339482), (1187, 327470), (1430, 271823), (2290, 169741), (2374, 163735), (2519, 154310), (2977, 130570), (5038, 77155), (5935, 65494), (5954, 65285), (11870, 32747), (12595, 30862), (13057, 29770), (14885, 26114), (15431, 25190)]