280385532

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{15671}}^1$

素因数の和:15759

約数の個数: 72

約数和(自身を含む): 821463552

約数和(自身を除く): 541078020

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 71, 84, 126, 142, 213, 252, 284, 426, 497, 639, 852, 994, 1278, 1491, 1988, 2556, 2982, 4473, 5964, 8946, 15671, 17892, 31342, 47013, 62684, 94026, 109697, 141039, 188052, 219394, 282078, 329091, 438788, 564156, 658182, 987273, 1112641, 1316364, 1974546, 2225282, 3337923, 3949092, 4450564, 6675846, 7788487, 10013769, 13351692, 15576974, 20027538, 23365461, 31153948, 40055076, 46730922, 70096383, 93461844, 140192766, 280385532]

約数ペア:

[(1, 280385532), (2, 140192766), (3, 93461844), (4, 70096383), (6, 46730922), (7, 40055076), (9, 31153948), (12, 23365461), (14, 20027538), (18, 15576974), (21, 13351692), (28, 10013769), (36, 7788487), (42, 6675846), (63, 4450564), (71, 3949092), (84, 3337923), (126, 2225282), (142, 1974546), (213, 1316364), (252, 1112641), (284, 987273), (426, 658182), (497, 564156), (639, 438788), (852, 329091), (994, 282078), (1278, 219394), (1491, 188052), (1988, 141039), (2556, 109697), (2982, 94026), (4473, 62684), (5964, 47013), (8946, 31342), (15671, 17892)]