61871220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{229}}^1$

素因数の和:342

約数の個数: 144

約数和(自身を含む): 200928000

約数和(自身を除く): 139056780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 79, 90, 95, 114, 158, 171, 180, 190, 228, 229, 237, 285, 316, 342, 380, 395, 458, 474, 570, 684, 687, 711, 790, 855, 916, 948, 1140, 1145, 1185, 1374, 1422, 1501, 1580, 1710, 2061, 2290, 2370, 2748, 2844, 3002, 3420, 3435, 3555, 4122, 4351, 4503, 4580, 4740, 6004, 6870, 7110, 7505, 8244, 8702, 9006, 10305, 13053, 13509, 13740, 14220, 15010, 17404, 18012, 18091, 20610, 21755, 22515, 26106, 27018, 30020, 36182, 39159, 41220, 43510, 45030, 52212, 54036, 54273, 65265, 67545, 72364, 78318, 87020, 90060, 90455, 108546, 130530, 135090, 156636, 162819, 180910, 195795, 217092, 261060, 270180, 271365, 325638, 343729, 361820, 391590, 542730, 651276, 687458, 783180, 814095, 1031187, 1085460, 1374916, 1628190, 1718645, 2062374, 3093561, 3256380, 3437290, 4124748, 5155935, 6187122, 6874580, 10311870, 12374244, 15467805, 20623740, 30935610, 61871220]

約数ペア:

[(1, 61871220), (2, 30935610), (3, 20623740), (4, 15467805), (5, 12374244), (6, 10311870), (9, 6874580), (10, 6187122), (12, 5155935), (15, 4124748), (18, 3437290), (19, 3256380), (20, 3093561), (30, 2062374), (36, 1718645), (38, 1628190), (45, 1374916), (57, 1085460), (60, 1031187), (76, 814095), (79, 783180), (90, 687458), (95, 651276), (114, 542730), (158, 391590), (171, 361820), (180, 343729), (190, 325638), (228, 271365), (229, 270180), (237, 261060), (285, 217092), (316, 195795), (342, 180910), (380, 162819), (395, 156636), (458, 135090), (474, 130530), (570, 108546), (684, 90455), (687, 90060), (711, 87020), (790, 78318), (855, 72364), (916, 67545), (948, 65265), (1140, 54273), (1145, 54036), (1185, 52212), (1374, 45030), (1422, 43510), (1501, 41220), (1580, 39159), (1710, 36182), (2061, 30020), (2290, 27018), (2370, 26106), (2748, 22515), (2844, 21755), (3002, 20610), (3420, 18091), (3435, 18012), (3555, 17404), (4122, 15010), (4351, 14220), (4503, 13740), (4580, 13509), (4740, 13053), (6004, 10305), (6870, 9006), (7110, 8702), (7505, 8244)]