31917180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:283

約数の個数: 96

約数和(自身を含む): 93139200

約数和(自身を除く): 61222020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 89, 129, 139, 172, 178, 215, 258, 267, 278, 356, 417, 430, 445, 516, 534, 556, 645, 695, 834, 860, 890, 1068, 1290, 1335, 1390, 1668, 1780, 2085, 2580, 2670, 2780, 3827, 4170, 5340, 5977, 7654, 8340, 11481, 11954, 12371, 15308, 17931, 19135, 22962, 23908, 24742, 29885, 35862, 37113, 38270, 45924, 49484, 57405, 59770, 61855, 71724, 74226, 76540, 89655, 114810, 119540, 123710, 148452, 179310, 185565, 229620, 247420, 358620, 371130, 531953, 742260, 1063906, 1595859, 2127812, 2659765, 3191718, 5319530, 6383436, 7979295, 10639060, 15958590, 31917180]

約数ペア:

[(1, 31917180), (2, 15958590), (3, 10639060), (4, 7979295), (5, 6383436), (6, 5319530), (10, 3191718), (12, 2659765), (15, 2127812), (20, 1595859), (30, 1063906), (43, 742260), (60, 531953), (86, 371130), (89, 358620), (129, 247420), (139, 229620), (172, 185565), (178, 179310), (215, 148452), (258, 123710), (267, 119540), (278, 114810), (356, 89655), (417, 76540), (430, 74226), (445, 71724), (516, 61855), (534, 59770), (556, 57405), (645, 49484), (695, 45924), (834, 38270), (860, 37113), (890, 35862), (1068, 29885), (1290, 24742), (1335, 23908), (1390, 22962), (1668, 19135), (1780, 17931), (2085, 15308), (2580, 12371), (2670, 11954), (2780, 11481), (3827, 8340), (4170, 7654), (5340, 5977)]