71555220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{509}}^1$

素因数の和:606

約数の個数: 144

約数和(自身を含む): 240589440

約数和(自身を除く): 169034220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 71, 90, 99, 110, 132, 142, 165, 180, 198, 213, 220, 284, 330, 355, 396, 426, 495, 509, 639, 660, 710, 781, 852, 990, 1018, 1065, 1278, 1420, 1527, 1562, 1980, 2036, 2130, 2343, 2545, 2556, 3054, 3124, 3195, 3905, 4260, 4581, 4686, 5090, 5599, 6108, 6390, 7029, 7635, 7810, 9162, 9372, 10180, 11198, 11715, 12780, 14058, 15270, 15620, 16797, 18324, 22396, 22905, 23430, 27995, 28116, 30540, 33594, 35145, 36139, 45810, 46860, 50391, 55990, 67188, 70290, 72278, 83985, 91620, 100782, 108417, 111980, 140580, 144556, 167970, 180695, 201564, 216834, 251955, 325251, 335940, 361390, 397529, 433668, 503910, 542085, 650502, 722780, 795058, 1007820, 1084170, 1192587, 1301004, 1590116, 1626255, 1987645, 2168340, 2385174, 3252510, 3577761, 3975290, 4770348, 5962935, 6505020, 7155522, 7950580, 11925870, 14311044, 17888805, 23851740, 35777610, 71555220]

約数ペア:

[(1, 71555220), (2, 35777610), (3, 23851740), (4, 17888805), (5, 14311044), (6, 11925870), (9, 7950580), (10, 7155522), (11, 6505020), (12, 5962935), (15, 4770348), (18, 3975290), (20, 3577761), (22, 3252510), (30, 2385174), (33, 2168340), (36, 1987645), (44, 1626255), (45, 1590116), (55, 1301004), (60, 1192587), (66, 1084170), (71, 1007820), (90, 795058), (99, 722780), (110, 650502), (132, 542085), (142, 503910), (165, 433668), (180, 397529), (198, 361390), (213, 335940), (220, 325251), (284, 251955), (330, 216834), (355, 201564), (396, 180695), (426, 167970), (495, 144556), (509, 140580), (639, 111980), (660, 108417), (710, 100782), (781, 91620), (852, 83985), (990, 72278), (1018, 70290), (1065, 67188), (1278, 55990), (1420, 50391), (1527, 46860), (1562, 45810), (1980, 36139), (2036, 35145), (2130, 33594), (2343, 30540), (2545, 28116), (2556, 27995), (3054, 23430), (3124, 22905), (3195, 22396), (3905, 18324), (4260, 16797), (4581, 15620), (4686, 15270), (5090, 14058), (5599, 12780), (6108, 11715), (6390, 11198), (7029, 10180), (7635, 9372), (7810, 9162)]