51943840

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{113}}^1$

素因数の和:171

約数の個数: 144

約数和(自身を含む): 141945048

約数和(自身を除く): 90001208

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 65, 68, 80, 85, 104, 113, 130, 136, 160, 169, 170, 208, 221, 226, 260, 272, 338, 340, 416, 442, 452, 520, 544, 565, 676, 680, 845, 884, 904, 1040, 1105, 1130, 1352, 1360, 1469, 1690, 1768, 1808, 1921, 2080, 2210, 2260, 2704, 2720, 2873, 2938, 3380, 3536, 3616, 3842, 4420, 4520, 5408, 5746, 5876, 6760, 7072, 7345, 7684, 8840, 9040, 9605, 11492, 11752, 13520, 14365, 14690, 15368, 17680, 18080, 19097, 19210, 22984, 23504, 24973, 27040, 28730, 29380, 30736, 35360, 38194, 38420, 45968, 47008, 49946, 57460, 58760, 61472, 76388, 76840, 91936, 95485, 99892, 114920, 117520, 124865, 152776, 153680, 190970, 199784, 229840, 235040, 249730, 305552, 307360, 324649, 381940, 399568, 459680, 499460, 611104, 649298, 763880, 799136, 998920, 1298596, 1527760, 1623245, 1997840, 2597192, 3055520, 3246490, 3995680, 5194384, 6492980, 10388768, 12985960, 25971920, 51943840]

約数ペア:

[(1, 51943840), (2, 25971920), (4, 12985960), (5, 10388768), (8, 6492980), (10, 5194384), (13, 3995680), (16, 3246490), (17, 3055520), (20, 2597192), (26, 1997840), (32, 1623245), (34, 1527760), (40, 1298596), (52, 998920), (65, 799136), (68, 763880), (80, 649298), (85, 611104), (104, 499460), (113, 459680), (130, 399568), (136, 381940), (160, 324649), (169, 307360), (170, 305552), (208, 249730), (221, 235040), (226, 229840), (260, 199784), (272, 190970), (338, 153680), (340, 152776), (416, 124865), (442, 117520), (452, 114920), (520, 99892), (544, 95485), (565, 91936), (676, 76840), (680, 76388), (845, 61472), (884, 58760), (904, 57460), (1040, 49946), (1105, 47008), (1130, 45968), (1352, 38420), (1360, 38194), (1469, 35360), (1690, 30736), (1768, 29380), (1808, 28730), (1921, 27040), (2080, 24973), (2210, 23504), (2260, 22984), (2704, 19210), (2720, 19097), (2873, 18080), (2938, 17680), (3380, 15368), (3536, 14690), (3616, 14365), (3842, 13520), (4420, 11752), (4520, 11492), (5408, 9605), (5746, 9040), (5876, 8840), (6760, 7684), (7072, 7345)]