438156680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{2011}}^1$

素因数の和:2454

約数の個数: 64

約数和(自身を含む): 1064750400

約数和(自身を除く): 626593720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 419, 520, 838, 1676, 2011, 2095, 3352, 4022, 4190, 5447, 8044, 8380, 10055, 10894, 16088, 16760, 20110, 21788, 26143, 27235, 40220, 43576, 52286, 54470, 80440, 104572, 108940, 130715, 209144, 217880, 261430, 522860, 842609, 1045720, 1685218, 3370436, 4213045, 6740872, 8426090, 10953917, 16852180, 21907834, 33704360, 43815668, 54769585, 87631336, 109539170, 219078340, 438156680]

約数ペア:

[(1, 438156680), (2, 219078340), (4, 109539170), (5, 87631336), (8, 54769585), (10, 43815668), (13, 33704360), (20, 21907834), (26, 16852180), (40, 10953917), (52, 8426090), (65, 6740872), (104, 4213045), (130, 3370436), (260, 1685218), (419, 1045720), (520, 842609), (838, 522860), (1676, 261430), (2011, 217880), (2095, 209144), (3352, 130715), (4022, 108940), (4190, 104572), (5447, 80440), (8044, 54470), (8380, 52286), (10055, 43576), (10894, 40220), (16088, 27235), (16760, 26143), (20110, 21788)]