338367640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{1553}}^1$

素因数の和:1996

約数の個数: 64

約数和(自身を含む): 822376800

約数和(自身を除く): 484009160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 419, 520, 838, 1553, 1676, 2095, 3106, 3352, 4190, 5447, 6212, 7765, 8380, 10894, 12424, 15530, 16760, 20189, 21788, 27235, 31060, 40378, 43576, 54470, 62120, 80756, 100945, 108940, 161512, 201890, 217880, 403780, 650707, 807560, 1301414, 2602828, 3253535, 5205656, 6507070, 8459191, 13014140, 16918382, 26028280, 33836764, 42295955, 67673528, 84591910, 169183820, 338367640]

約数ペア:

[(1, 338367640), (2, 169183820), (4, 84591910), (5, 67673528), (8, 42295955), (10, 33836764), (13, 26028280), (20, 16918382), (26, 13014140), (40, 8459191), (52, 6507070), (65, 5205656), (104, 3253535), (130, 2602828), (260, 1301414), (419, 807560), (520, 650707), (838, 403780), (1553, 217880), (1676, 201890), (2095, 161512), (3106, 108940), (3352, 100945), (4190, 80756), (5447, 62120), (6212, 54470), (7765, 43576), (8380, 40378), (10894, 31060), (12424, 27235), (15530, 21788), (16760, 20189)]