20081321898

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{53}}^2\times {\mathrm{229}}^1$

素因数の和:405

約数の個数: 144

約数和(自身を含む): 46241801760

約数和(自身を除く): 26160479862

約数列:

[1, 2, 3, 6, 11, 22, 33, 43, 53, 66, 86, 106, 121, 129, 159, 229, 242, 258, 318, 363, 458, 473, 583, 687, 726, 946, 1166, 1374, 1419, 1749, 2279, 2519, 2809, 2838, 3498, 4558, 5038, 5203, 5618, 6413, 6837, 7557, 8427, 9847, 10406, 12137, 12826, 13674, 15114, 15609, 16854, 19239, 19694, 24274, 25069, 27709, 29541, 30899, 31218, 36411, 38478, 50138, 55418, 59082, 61798, 72822, 75207, 83127, 92697, 108317, 120787, 133507, 150414, 166254, 185394, 216634, 241574, 267014, 275759, 324951, 339889, 362361, 400521, 521891, 551518, 643261, 649902, 679778, 724722, 801042, 827277, 1019667, 1043782, 1191487, 1286522, 1328657, 1468577, 1565673, 1654554, 1929783, 2039334, 2382974, 2657314, 2937154, 3131346, 3574461, 3859566, 3985971, 4405731, 5740801, 7075871, 7148922, 7971942, 8811462, 11481602, 14151742, 14615227, 17222403, 21227613, 27660223, 29230454, 34444806, 42455226, 43845681, 55320446, 63148811, 77834581, 82980669, 87691362, 126297622, 155669162, 165961338, 189446433, 233503743, 304262453, 378892866, 467007486, 608524906, 912787359, 1825574718, 3346886983, 6693773966, 10040660949, 20081321898]

約数ペア:

[(1, 20081321898), (2, 10040660949), (3, 6693773966), (6, 3346886983), (11, 1825574718), (22, 912787359), (33, 608524906), (43, 467007486), (53, 378892866), (66, 304262453), (86, 233503743), (106, 189446433), (121, 165961338), (129, 155669162), (159, 126297622), (229, 87691362), (242, 82980669), (258, 77834581), (318, 63148811), (363, 55320446), (458, 43845681), (473, 42455226), (583, 34444806), (687, 29230454), (726, 27660223), (946, 21227613), (1166, 17222403), (1374, 14615227), (1419, 14151742), (1749, 11481602), (2279, 8811462), (2519, 7971942), (2809, 7148922), (2838, 7075871), (3498, 5740801), (4558, 4405731), (5038, 3985971), (5203, 3859566), (5618, 3574461), (6413, 3131346), (6837, 2937154), (7557, 2657314), (8427, 2382974), (9847, 2039334), (10406, 1929783), (12137, 1654554), (12826, 1565673), (13674, 1468577), (15114, 1328657), (15609, 1286522), (16854, 1191487), (19239, 1043782), (19694, 1019667), (24274, 827277), (25069, 801042), (27709, 724722), (29541, 679778), (30899, 649902), (31218, 643261), (36411, 551518), (38478, 521891), (50138, 400521), (55418, 362361), (59082, 339889), (61798, 324951), (72822, 275759), (75207, 267014), (83127, 241574), (92697, 216634), (108317, 185394), (120787, 166254), (133507, 150414)]