72857680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{463}}^1$

素因数の和:764

約数の個数: 80

約数和(自身を含む): 194701824

約数和(自身を除く): 121844144

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 281, 463, 560, 562, 926, 1124, 1405, 1852, 1967, 2248, 2315, 2810, 3241, 3704, 3934, 4496, 4630, 5620, 6482, 7408, 7868, 9260, 9835, 11240, 12964, 15736, 16205, 18520, 19670, 22480, 25928, 31472, 32410, 37040, 39340, 51856, 64820, 78680, 129640, 130103, 157360, 259280, 260206, 520412, 650515, 910721, 1040824, 1301030, 1821442, 2081648, 2602060, 3642884, 4553605, 5204120, 7285768, 9107210, 10408240, 14571536, 18214420, 36428840, 72857680]

約数ペア:

[(1, 72857680), (2, 36428840), (4, 18214420), (5, 14571536), (7, 10408240), (8, 9107210), (10, 7285768), (14, 5204120), (16, 4553605), (20, 3642884), (28, 2602060), (35, 2081648), (40, 1821442), (56, 1301030), (70, 1040824), (80, 910721), (112, 650515), (140, 520412), (280, 260206), (281, 259280), (463, 157360), (560, 130103), (562, 129640), (926, 78680), (1124, 64820), (1405, 51856), (1852, 39340), (1967, 37040), (2248, 32410), (2315, 31472), (2810, 25928), (3241, 22480), (3704, 19670), (3934, 18520), (4496, 16205), (4630, 15736), (5620, 12964), (6482, 11240), (7408, 9835), (7868, 9260)]