207831440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{463}}^1$

素因数の和:688

約数の個数: 80

約数和(自身を含む): 502634496

約数和(自身を除く): 294803056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 181, 248, 310, 362, 463, 496, 620, 724, 905, 926, 1240, 1448, 1810, 1852, 2315, 2480, 2896, 3620, 3704, 4630, 5611, 7240, 7408, 9260, 11222, 14353, 14480, 18520, 22444, 28055, 28706, 37040, 44888, 56110, 57412, 71765, 83803, 89776, 112220, 114824, 143530, 167606, 224440, 229648, 287060, 335212, 419015, 448880, 574120, 670424, 838030, 1148240, 1340848, 1676060, 2597893, 3352120, 5195786, 6704240, 10391572, 12989465, 20783144, 25978930, 41566288, 51957860, 103915720, 207831440]

約数ペア:

[(1, 207831440), (2, 103915720), (4, 51957860), (5, 41566288), (8, 25978930), (10, 20783144), (16, 12989465), (20, 10391572), (31, 6704240), (40, 5195786), (62, 3352120), (80, 2597893), (124, 1676060), (155, 1340848), (181, 1148240), (248, 838030), (310, 670424), (362, 574120), (463, 448880), (496, 419015), (620, 335212), (724, 287060), (905, 229648), (926, 224440), (1240, 167606), (1448, 143530), (1810, 114824), (1852, 112220), (2315, 89776), (2480, 83803), (2896, 71765), (3620, 57412), (3704, 56110), (4630, 44888), (5611, 37040), (7240, 28706), (7408, 28055), (9260, 22444), (11222, 18520), (14353, 14480)]