345455440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{457}}^1\times {\mathrm{859}}^1$

素因数の和:1340

約数の個数: 80

約数和(自身を含む): 879140160

約数和(自身を除く): 533684720

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 457, 859, 880, 914, 1718, 1828, 2285, 3436, 3656, 4295, 4570, 5027, 6872, 7312, 8590, 9140, 9449, 10054, 13744, 17180, 18280, 18898, 20108, 25135, 34360, 36560, 37796, 40216, 47245, 50270, 68720, 75592, 80432, 94490, 100540, 151184, 188980, 201080, 377960, 392563, 402160, 755920, 785126, 1570252, 1962815, 3140504, 3925630, 4318193, 6281008, 7851260, 8636386, 15702520, 17272772, 21590965, 31405040, 34545544, 43181930, 69091088, 86363860, 172727720, 345455440]

約数ペア:

[(1, 345455440), (2, 172727720), (4, 86363860), (5, 69091088), (8, 43181930), (10, 34545544), (11, 31405040), (16, 21590965), (20, 17272772), (22, 15702520), (40, 8636386), (44, 7851260), (55, 6281008), (80, 4318193), (88, 3925630), (110, 3140504), (176, 1962815), (220, 1570252), (440, 785126), (457, 755920), (859, 402160), (880, 392563), (914, 377960), (1718, 201080), (1828, 188980), (2285, 151184), (3436, 100540), (3656, 94490), (4295, 80432), (4570, 75592), (5027, 68720), (6872, 50270), (7312, 47245), (8590, 40216), (9140, 37796), (9449, 36560), (10054, 34360), (13744, 25135), (17180, 20108), (18280, 18898)]