20120171580

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{142757}}^1$

素因数の和:142810

約数の個数: 144

約数和(自身を含む): 65474529120

約数和(自身を除く): 45354357540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 29, 30, 36, 45, 54, 58, 60, 81, 87, 90, 108, 116, 135, 145, 162, 174, 180, 243, 261, 270, 290, 324, 348, 405, 435, 486, 522, 540, 580, 783, 810, 870, 972, 1044, 1215, 1305, 1566, 1620, 1740, 2349, 2430, 2610, 3132, 3915, 4698, 4860, 5220, 7047, 7830, 9396, 11745, 14094, 15660, 23490, 28188, 35235, 46980, 70470, 140940, 142757, 285514, 428271, 571028, 713785, 856542, 1284813, 1427570, 1713084, 2141355, 2569626, 2855140, 3854439, 4139953, 4282710, 5139252, 6424065, 7708878, 8279906, 8565420, 11563317, 12419859, 12848130, 15417756, 16559812, 19272195, 20699765, 23126634, 24839718, 25696260, 34689951, 37259577, 38544390, 41399530, 46253268, 49679436, 57816585, 62099295, 69379902, 74519154, 77088780, 82799060, 111778731, 115633170, 124198590, 138759804, 149038308, 173449755, 186297885, 223557462, 231266340, 248397180, 335336193, 346899510, 372595770, 447114924, 558893655, 670672386, 693799020, 745191540, 1006008579, 1117787310, 1341344772, 1676680965, 2012017158, 2235574620, 3353361930, 4024034316, 5030042895, 6706723860, 10060085790, 20120171580]

約数ペア:

[(1, 20120171580), (2, 10060085790), (3, 6706723860), (4, 5030042895), (5, 4024034316), (6, 3353361930), (9, 2235574620), (10, 2012017158), (12, 1676680965), (15, 1341344772), (18, 1117787310), (20, 1006008579), (27, 745191540), (29, 693799020), (30, 670672386), (36, 558893655), (45, 447114924), (54, 372595770), (58, 346899510), (60, 335336193), (81, 248397180), (87, 231266340), (90, 223557462), (108, 186297885), (116, 173449755), (135, 149038308), (145, 138759804), (162, 124198590), (174, 115633170), (180, 111778731), (243, 82799060), (261, 77088780), (270, 74519154), (290, 69379902), (324, 62099295), (348, 57816585), (405, 49679436), (435, 46253268), (486, 41399530), (522, 38544390), (540, 37259577), (580, 34689951), (783, 25696260), (810, 24839718), (870, 23126634), (972, 20699765), (1044, 19272195), (1215, 16559812), (1305, 15417756), (1566, 12848130), (1620, 12419859), (1740, 11563317), (2349, 8565420), (2430, 8279906), (2610, 7708878), (3132, 6424065), (3915, 5139252), (4698, 4282710), (4860, 4139953), (5220, 3854439), (7047, 2855140), (7830, 2569626), (9396, 2141355), (11745, 1713084), (14094, 1427570), (15660, 1284813), (23490, 856542), (28188, 713785), (35235, 571028), (46980, 428271), (70470, 285514), (140940, 142757)]