40020720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{577}}^1$

素因数の和:627

約数の個数: 120

約数和(自身を含む): 132019824

約数和(自身を除く): 91999104

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 289, 340, 408, 510, 577, 578, 680, 816, 867, 1020, 1154, 1156, 1360, 1445, 1731, 1734, 2040, 2308, 2312, 2885, 2890, 3462, 3468, 4080, 4335, 4616, 4624, 5770, 5780, 6924, 6936, 8655, 8670, 9232, 9809, 11540, 11560, 13848, 13872, 17310, 17340, 19618, 23080, 23120, 27696, 29427, 34620, 34680, 39236, 46160, 49045, 58854, 69240, 69360, 78472, 98090, 117708, 138480, 147135, 156944, 166753, 196180, 235416, 294270, 333506, 392360, 470832, 500259, 588540, 667012, 784720, 833765, 1000518, 1177080, 1334024, 1667530, 2001036, 2354160, 2501295, 2668048, 3335060, 4002072, 5002590, 6670120, 8004144, 10005180, 13340240, 20010360, 40020720]

約数ペア:

[(1, 40020720), (2, 20010360), (3, 13340240), (4, 10005180), (5, 8004144), (6, 6670120), (8, 5002590), (10, 4002072), (12, 3335060), (15, 2668048), (16, 2501295), (17, 2354160), (20, 2001036), (24, 1667530), (30, 1334024), (34, 1177080), (40, 1000518), (48, 833765), (51, 784720), (60, 667012), (68, 588540), (80, 500259), (85, 470832), (102, 392360), (120, 333506), (136, 294270), (170, 235416), (204, 196180), (240, 166753), (255, 156944), (272, 147135), (289, 138480), (340, 117708), (408, 98090), (510, 78472), (577, 69360), (578, 69240), (680, 58854), (816, 49045), (867, 46160), (1020, 39236), (1154, 34680), (1156, 34620), (1360, 29427), (1445, 27696), (1731, 23120), (1734, 23080), (2040, 19618), (2308, 17340), (2312, 17310), (2885, 13872), (2890, 13848), (3462, 11560), (3468, 11540), (4080, 9809), (4335, 9232), (4616, 8670), (4624, 8655), (5770, 6936), (5780, 6924)]