81846870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{281}}^1$

素因数の和:390

約数の個数: 128

約数和(自身を含む): 240399360

約数和(自身を除く): 158552490

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 70, 73, 95, 105, 114, 133, 146, 190, 210, 219, 266, 281, 285, 365, 399, 438, 511, 562, 570, 665, 730, 798, 843, 1022, 1095, 1330, 1387, 1405, 1533, 1686, 1967, 1995, 2190, 2555, 2774, 2810, 3066, 3934, 3990, 4161, 4215, 5110, 5339, 5901, 6935, 7665, 8322, 8430, 9709, 9835, 10678, 11802, 13870, 15330, 16017, 19418, 19670, 20513, 20805, 26695, 29127, 29505, 32034, 37373, 41026, 41610, 48545, 53390, 58254, 59010, 61539, 74746, 80085, 97090, 102565, 112119, 123078, 143591, 145635, 160170, 186865, 205130, 224238, 287182, 291270, 307695, 373730, 389747, 430773, 560595, 615390, 717955, 779494, 861546, 1121190, 1169241, 1435910, 1948735, 2153865, 2338482, 2728229, 3897470, 4307730, 5456458, 5846205, 8184687, 11692410, 13641145, 16369374, 27282290, 40923435, 81846870]

約数ペア:

[(1, 81846870), (2, 40923435), (3, 27282290), (5, 16369374), (6, 13641145), (7, 11692410), (10, 8184687), (14, 5846205), (15, 5456458), (19, 4307730), (21, 3897470), (30, 2728229), (35, 2338482), (38, 2153865), (42, 1948735), (57, 1435910), (70, 1169241), (73, 1121190), (95, 861546), (105, 779494), (114, 717955), (133, 615390), (146, 560595), (190, 430773), (210, 389747), (219, 373730), (266, 307695), (281, 291270), (285, 287182), (365, 224238), (399, 205130), (438, 186865), (511, 160170), (562, 145635), (570, 143591), (665, 123078), (730, 112119), (798, 102565), (843, 97090), (1022, 80085), (1095, 74746), (1330, 61539), (1387, 59010), (1405, 58254), (1533, 53390), (1686, 48545), (1967, 41610), (1995, 41026), (2190, 37373), (2555, 32034), (2774, 29505), (2810, 29127), (3066, 26695), (3934, 20805), (3990, 20513), (4161, 19670), (4215, 19418), (5110, 16017), (5339, 15330), (5901, 13870), (6935, 11802), (7665, 10678), (8322, 9835), (8430, 9709)]