272720120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{1031}}^1$

素因数の和:1448

約数の個数: 64

約数和(自身を含む): 652017600

約数和(自身を除く): 379297480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 389, 680, 778, 1031, 1556, 1945, 2062, 3112, 3890, 4124, 5155, 6613, 7780, 8248, 10310, 13226, 15560, 17527, 20620, 26452, 33065, 35054, 41240, 52904, 66130, 70108, 87635, 132260, 140216, 175270, 264520, 350540, 401059, 701080, 802118, 1604236, 2005295, 3208472, 4010590, 6818003, 8021180, 13636006, 16042360, 27272012, 34090015, 54544024, 68180030, 136360060, 272720120]

約数ペア:

[(1, 272720120), (2, 136360060), (4, 68180030), (5, 54544024), (8, 34090015), (10, 27272012), (17, 16042360), (20, 13636006), (34, 8021180), (40, 6818003), (68, 4010590), (85, 3208472), (136, 2005295), (170, 1604236), (340, 802118), (389, 701080), (680, 401059), (778, 350540), (1031, 264520), (1556, 175270), (1945, 140216), (2062, 132260), (3112, 87635), (3890, 70108), (4124, 66130), (5155, 52904), (6613, 41240), (7780, 35054), (8248, 33065), (10310, 26452), (13226, 20620), (15560, 17527)]