71820684

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:280

約数の個数: 144

約数和(自身を含む): 211891680

約数和(自身を除く): 140070996

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 38, 39, 41, 52, 57, 76, 78, 82, 114, 117, 123, 156, 164, 171, 197, 228, 234, 246, 247, 342, 369, 394, 468, 492, 494, 533, 591, 684, 738, 741, 779, 788, 988, 1066, 1182, 1476, 1482, 1558, 1599, 1773, 2132, 2223, 2337, 2364, 2561, 2964, 3116, 3198, 3546, 3743, 4446, 4674, 4797, 5122, 6396, 7011, 7092, 7486, 7683, 8077, 8892, 9348, 9594, 10127, 10244, 11229, 14022, 14972, 15366, 16154, 19188, 20254, 22458, 23049, 24231, 28044, 30381, 30732, 32308, 33687, 40508, 44916, 46098, 48462, 48659, 60762, 67374, 72693, 91143, 92196, 96924, 97318, 105001, 121524, 134748, 145386, 145977, 153463, 182286, 194636, 210002, 290772, 291954, 306926, 315003, 364572, 420004, 437931, 460389, 583908, 613852, 630006, 875862, 920778, 945009, 1260012, 1381167, 1751724, 1841556, 1890018, 1995019, 2762334, 3780036, 3990038, 5524668, 5985057, 7980076, 11970114, 17955171, 23940228, 35910342, 71820684]

約数ペア:

[(1, 71820684), (2, 35910342), (3, 23940228), (4, 17955171), (6, 11970114), (9, 7980076), (12, 5985057), (13, 5524668), (18, 3990038), (19, 3780036), (26, 2762334), (36, 1995019), (38, 1890018), (39, 1841556), (41, 1751724), (52, 1381167), (57, 1260012), (76, 945009), (78, 920778), (82, 875862), (114, 630006), (117, 613852), (123, 583908), (156, 460389), (164, 437931), (171, 420004), (197, 364572), (228, 315003), (234, 306926), (246, 291954), (247, 290772), (342, 210002), (369, 194636), (394, 182286), (468, 153463), (492, 145977), (494, 145386), (533, 134748), (591, 121524), (684, 105001), (738, 97318), (741, 96924), (779, 92196), (788, 91143), (988, 72693), (1066, 67374), (1182, 60762), (1476, 48659), (1482, 48462), (1558, 46098), (1599, 44916), (1773, 40508), (2132, 33687), (2223, 32308), (2337, 30732), (2364, 30381), (2561, 28044), (2964, 24231), (3116, 23049), (3198, 22458), (3546, 20254), (3743, 19188), (4446, 16154), (4674, 15366), (4797, 14972), (5122, 14022), (6396, 11229), (7011, 10244), (7092, 10127), (7486, 9594), (7683, 9348), (8077, 8892)]