889571920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{28439}}^1$

素因数の和:28492

約数の個数: 80

約数和(自身を含む): 2285210880

約数和(自身を除く): 1395638960

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 34, 40, 46, 68, 80, 85, 92, 115, 136, 170, 184, 230, 272, 340, 368, 391, 460, 680, 782, 920, 1360, 1564, 1840, 1955, 3128, 3910, 6256, 7820, 15640, 28439, 31280, 56878, 113756, 142195, 227512, 284390, 455024, 483463, 568780, 654097, 966926, 1137560, 1308194, 1933852, 2275120, 2417315, 2616388, 3270485, 3867704, 4834630, 5232776, 6540970, 7735408, 9669260, 10465552, 11119649, 13081940, 19338520, 22239298, 26163880, 38677040, 44478596, 52327760, 55598245, 88957192, 111196490, 177914384, 222392980, 444785960, 889571920]

約数ペア:

[(1, 889571920), (2, 444785960), (4, 222392980), (5, 177914384), (8, 111196490), (10, 88957192), (16, 55598245), (17, 52327760), (20, 44478596), (23, 38677040), (34, 26163880), (40, 22239298), (46, 19338520), (68, 13081940), (80, 11119649), (85, 10465552), (92, 9669260), (115, 7735408), (136, 6540970), (170, 5232776), (184, 4834630), (230, 3867704), (272, 3270485), (340, 2616388), (368, 2417315), (391, 2275120), (460, 1933852), (680, 1308194), (782, 1137560), (920, 966926), (1360, 654097), (1564, 568780), (1840, 483463), (1955, 455024), (3128, 284390), (3910, 227512), (6256, 142195), (7820, 113756), (15640, 56878), (28439, 31280)]