213395940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1\times {\mathrm{229}}^1$

素因数の和:442

約数の個数: 144

約数和(自身を含む): 675118080

約数和(自身を除く): 461722140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 167, 180, 186, 229, 279, 310, 334, 372, 458, 465, 501, 558, 620, 668, 687, 835, 916, 930, 1002, 1116, 1145, 1374, 1395, 1503, 1670, 1860, 2004, 2061, 2290, 2505, 2748, 2790, 3006, 3340, 3435, 4122, 4580, 5010, 5177, 5580, 6012, 6870, 7099, 7515, 8244, 10020, 10305, 10354, 13740, 14198, 15030, 15531, 20610, 20708, 21297, 25885, 28396, 30060, 31062, 35495, 38243, 41220, 42594, 46593, 51770, 62124, 63891, 70990, 76486, 77655, 85188, 93186, 103540, 106485, 114729, 127782, 141980, 152972, 155310, 186372, 191215, 212970, 229458, 232965, 255564, 310620, 319455, 344187, 382430, 425940, 458916, 465930, 573645, 638910, 688374, 764860, 931860, 1147290, 1185533, 1277820, 1376748, 1720935, 2294580, 2371066, 3441870, 3556599, 4742132, 5927665, 6883740, 7113198, 10669797, 11855330, 14226396, 17782995, 21339594, 23710660, 35565990, 42679188, 53348985, 71131980, 106697970, 213395940]

約数ペア:

[(1, 213395940), (2, 106697970), (3, 71131980), (4, 53348985), (5, 42679188), (6, 35565990), (9, 23710660), (10, 21339594), (12, 17782995), (15, 14226396), (18, 11855330), (20, 10669797), (30, 7113198), (31, 6883740), (36, 5927665), (45, 4742132), (60, 3556599), (62, 3441870), (90, 2371066), (93, 2294580), (124, 1720935), (155, 1376748), (167, 1277820), (180, 1185533), (186, 1147290), (229, 931860), (279, 764860), (310, 688374), (334, 638910), (372, 573645), (458, 465930), (465, 458916), (501, 425940), (558, 382430), (620, 344187), (668, 319455), (687, 310620), (835, 255564), (916, 232965), (930, 229458), (1002, 212970), (1116, 191215), (1145, 186372), (1374, 155310), (1395, 152972), (1503, 141980), (1670, 127782), (1860, 114729), (2004, 106485), (2061, 103540), (2290, 93186), (2505, 85188), (2748, 77655), (2790, 76486), (3006, 70990), (3340, 63891), (3435, 62124), (4122, 51770), (4580, 46593), (5010, 42594), (5177, 41220), (5580, 38243), (6012, 35495), (6870, 31062), (7099, 30060), (7515, 28396), (8244, 25885), (10020, 21297), (10305, 20708), (10354, 20610), (13740, 15531), (14198, 15030)]