20079720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{193}}^1$

素因数の和:244

約数の個数: 144

約数和(自身を含む): 69682860

約数和(自身を除く): 49603140

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 30, 34, 36, 40, 45, 51, 60, 68, 72, 85, 90, 102, 120, 136, 153, 170, 180, 193, 204, 255, 289, 306, 340, 360, 386, 408, 510, 578, 579, 612, 680, 765, 772, 867, 965, 1020, 1156, 1158, 1224, 1445, 1530, 1544, 1734, 1737, 1930, 2040, 2312, 2316, 2601, 2890, 2895, 3060, 3281, 3468, 3474, 3860, 4335, 4632, 5202, 5780, 5790, 6120, 6562, 6936, 6948, 7720, 8670, 8685, 9843, 10404, 11560, 11580, 13005, 13124, 13896, 16405, 17340, 17370, 19686, 20808, 23160, 26010, 26248, 29529, 32810, 34680, 34740, 39372, 49215, 52020, 55777, 59058, 65620, 69480, 78744, 98430, 104040, 111554, 118116, 131240, 147645, 167331, 196860, 223108, 236232, 278885, 295290, 334662, 393720, 446216, 501993, 557770, 590580, 669324, 836655, 1003986, 1115540, 1181160, 1338648, 1673310, 2007972, 2231080, 2509965, 3346620, 4015944, 5019930, 6693240, 10039860, 20079720]

約数ペア:

[(1, 20079720), (2, 10039860), (3, 6693240), (4, 5019930), (5, 4015944), (6, 3346620), (8, 2509965), (9, 2231080), (10, 2007972), (12, 1673310), (15, 1338648), (17, 1181160), (18, 1115540), (20, 1003986), (24, 836655), (30, 669324), (34, 590580), (36, 557770), (40, 501993), (45, 446216), (51, 393720), (60, 334662), (68, 295290), (72, 278885), (85, 236232), (90, 223108), (102, 196860), (120, 167331), (136, 147645), (153, 131240), (170, 118116), (180, 111554), (193, 104040), (204, 98430), (255, 78744), (289, 69480), (306, 65620), (340, 59058), (360, 55777), (386, 52020), (408, 49215), (510, 39372), (578, 34740), (579, 34680), (612, 32810), (680, 29529), (765, 26248), (772, 26010), (867, 23160), (965, 20808), (1020, 19686), (1156, 17370), (1158, 17340), (1224, 16405), (1445, 13896), (1530, 13124), (1544, 13005), (1734, 11580), (1737, 11560), (1930, 10404), (2040, 9843), (2312, 8685), (2316, 8670), (2601, 7720), (2890, 6948), (2895, 6936), (3060, 6562), (3281, 6120), (3468, 5790), (3474, 5780), (3860, 5202), (4335, 4632)]