20112562540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{10853}}^1$

素因数の和:10968

約数の個数: 144

約数和(自身を含む): 51553200384

約数和(自身を除く): 31440637844

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 61, 62, 70, 98, 122, 124, 140, 155, 196, 217, 244, 245, 305, 310, 427, 434, 490, 610, 620, 854, 868, 980, 1085, 1220, 1519, 1708, 1891, 2135, 2170, 2989, 3038, 3782, 4270, 4340, 5978, 6076, 7564, 7595, 8540, 9455, 10853, 11956, 13237, 14945, 15190, 18910, 21706, 26474, 29890, 30380, 37820, 43412, 52948, 54265, 59780, 66185, 75971, 92659, 108530, 132370, 151942, 185318, 217060, 264740, 303884, 336443, 370636, 379855, 463295, 531797, 662033, 672886, 759710, 926590, 1063594, 1324066, 1345772, 1519420, 1682215, 1853180, 2127188, 2355101, 2648132, 2658985, 3310165, 3364430, 4634231, 4710202, 5317970, 6620330, 6728860, 9268462, 9420404, 10635940, 11775505, 13240660, 16485707, 18536924, 20523023, 23171155, 23551010, 32439617, 32971414, 41046046, 46342310, 47102020, 64879234, 65942828, 82092092, 82428535, 92684620, 102615115, 129758468, 143661161, 162198085, 164857070, 205230230, 287322322, 324396170, 329714140, 410460460, 574644644, 648792340, 718305805, 1005628127, 1436611610, 2011256254, 2873223220, 4022512508, 5028140635, 10056281270, 20112562540]

約数ペア:

[(1, 20112562540), (2, 10056281270), (4, 5028140635), (5, 4022512508), (7, 2873223220), (10, 2011256254), (14, 1436611610), (20, 1005628127), (28, 718305805), (31, 648792340), (35, 574644644), (49, 410460460), (61, 329714140), (62, 324396170), (70, 287322322), (98, 205230230), (122, 164857070), (124, 162198085), (140, 143661161), (155, 129758468), (196, 102615115), (217, 92684620), (244, 82428535), (245, 82092092), (305, 65942828), (310, 64879234), (427, 47102020), (434, 46342310), (490, 41046046), (610, 32971414), (620, 32439617), (854, 23551010), (868, 23171155), (980, 20523023), (1085, 18536924), (1220, 16485707), (1519, 13240660), (1708, 11775505), (1891, 10635940), (2135, 9420404), (2170, 9268462), (2989, 6728860), (3038, 6620330), (3782, 5317970), (4270, 4710202), (4340, 4634231), (5978, 3364430), (6076, 3310165), (7564, 2658985), (7595, 2648132), (8540, 2355101), (9455, 2127188), (10853, 1853180), (11956, 1682215), (13237, 1519420), (14945, 1345772), (15190, 1324066), (18910, 1063594), (21706, 926590), (26474, 759710), (29890, 672886), (30380, 662033), (37820, 531797), (43412, 463295), (52948, 379855), (54265, 370636), (59780, 336443), (66185, 303884), (75971, 264740), (92659, 217060), (108530, 185318), (132370, 151942)]