858760020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{461}}^1$

素因数の和:686

約数の個数: 144

約数和(自身を含む): 2663781120

約数和(自身を除く): 1805021100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 79, 90, 131, 158, 180, 237, 262, 316, 393, 395, 461, 474, 524, 655, 711, 786, 790, 922, 948, 1179, 1185, 1310, 1383, 1422, 1572, 1580, 1844, 1965, 2305, 2358, 2370, 2620, 2766, 2844, 3555, 3930, 4149, 4610, 4716, 4740, 5532, 5895, 6915, 7110, 7860, 8298, 9220, 10349, 11790, 13830, 14220, 16596, 20698, 20745, 23580, 27660, 31047, 36419, 41396, 41490, 51745, 60391, 62094, 72838, 82980, 93141, 103490, 109257, 120782, 124188, 145676, 155235, 181173, 182095, 186282, 206980, 218514, 241564, 301955, 310470, 327771, 362346, 364190, 372564, 437028, 465705, 543519, 546285, 603910, 620940, 655542, 724692, 728380, 905865, 931410, 1087038, 1092570, 1207820, 1311084, 1638855, 1811730, 1862820, 2174076, 2185140, 2717595, 3277710, 3623460, 4770889, 5435190, 6555420, 9541778, 10870380, 14312667, 19083556, 23854445, 28625334, 42938001, 47708890, 57250668, 71563335, 85876002, 95417780, 143126670, 171752004, 214690005, 286253340, 429380010, 858760020]

約数ペア:

[(1, 858760020), (2, 429380010), (3, 286253340), (4, 214690005), (5, 171752004), (6, 143126670), (9, 95417780), (10, 85876002), (12, 71563335), (15, 57250668), (18, 47708890), (20, 42938001), (30, 28625334), (36, 23854445), (45, 19083556), (60, 14312667), (79, 10870380), (90, 9541778), (131, 6555420), (158, 5435190), (180, 4770889), (237, 3623460), (262, 3277710), (316, 2717595), (393, 2185140), (395, 2174076), (461, 1862820), (474, 1811730), (524, 1638855), (655, 1311084), (711, 1207820), (786, 1092570), (790, 1087038), (922, 931410), (948, 905865), (1179, 728380), (1185, 724692), (1310, 655542), (1383, 620940), (1422, 603910), (1572, 546285), (1580, 543519), (1844, 465705), (1965, 437028), (2305, 372564), (2358, 364190), (2370, 362346), (2620, 327771), (2766, 310470), (2844, 301955), (3555, 241564), (3930, 218514), (4149, 206980), (4610, 186282), (4716, 182095), (4740, 181173), (5532, 155235), (5895, 145676), (6915, 124188), (7110, 120782), (7860, 109257), (8298, 103490), (9220, 93141), (10349, 82980), (11790, 72838), (13830, 62094), (14220, 60391), (16596, 51745), (20698, 41490), (20745, 41396), (23580, 36419), (27660, 31047)]