20680170

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:180

約数の個数: 128

約数和(自身を含む): 61378560

約数和(自身を除く): 40698390

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 70, 71, 73, 95, 105, 114, 133, 142, 146, 190, 210, 213, 219, 266, 285, 355, 365, 399, 426, 438, 497, 511, 570, 665, 710, 730, 798, 994, 1022, 1065, 1095, 1330, 1349, 1387, 1491, 1533, 1995, 2130, 2190, 2485, 2555, 2698, 2774, 2982, 3066, 3990, 4047, 4161, 4970, 5110, 5183, 6745, 6935, 7455, 7665, 8094, 8322, 9443, 9709, 10366, 13490, 13870, 14910, 15330, 15549, 18886, 19418, 20235, 20805, 25915, 28329, 29127, 31098, 36281, 40470, 41610, 47215, 48545, 51830, 56658, 58254, 72562, 77745, 94430, 97090, 98477, 108843, 141645, 145635, 155490, 181405, 196954, 217686, 283290, 291270, 295431, 362810, 492385, 544215, 590862, 689339, 984770, 1088430, 1378678, 1477155, 2068017, 2954310, 3446695, 4136034, 6893390, 10340085, 20680170]

約数ペア:

[(1, 20680170), (2, 10340085), (3, 6893390), (5, 4136034), (6, 3446695), (7, 2954310), (10, 2068017), (14, 1477155), (15, 1378678), (19, 1088430), (21, 984770), (30, 689339), (35, 590862), (38, 544215), (42, 492385), (57, 362810), (70, 295431), (71, 291270), (73, 283290), (95, 217686), (105, 196954), (114, 181405), (133, 155490), (142, 145635), (146, 141645), (190, 108843), (210, 98477), (213, 97090), (219, 94430), (266, 77745), (285, 72562), (355, 58254), (365, 56658), (399, 51830), (426, 48545), (438, 47215), (497, 41610), (511, 40470), (570, 36281), (665, 31098), (710, 29127), (730, 28329), (798, 25915), (994, 20805), (1022, 20235), (1065, 19418), (1095, 18886), (1330, 15549), (1349, 15330), (1387, 14910), (1491, 13870), (1533, 13490), (1995, 10366), (2130, 9709), (2190, 9443), (2485, 8322), (2555, 8094), (2698, 7665), (2774, 7455), (2982, 6935), (3066, 6745), (3990, 5183), (4047, 5110), (4161, 4970)]