28346724

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{571}}^1$

素因数の和:785

約数の個数: 72

約数和(自身を含む): 82450368

約数和(自身を除く): 54103644

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 197, 252, 394, 571, 591, 788, 1142, 1182, 1379, 1713, 1773, 2284, 2364, 2758, 3426, 3546, 3997, 4137, 5139, 5516, 6852, 7092, 7994, 8274, 10278, 11991, 12411, 15988, 16548, 20556, 23982, 24822, 35973, 47964, 49644, 71946, 112487, 143892, 224974, 337461, 449948, 674922, 787409, 1012383, 1349844, 1574818, 2024766, 2362227, 3149636, 4049532, 4724454, 7086681, 9448908, 14173362, 28346724]

約数ペア:

[(1, 28346724), (2, 14173362), (3, 9448908), (4, 7086681), (6, 4724454), (7, 4049532), (9, 3149636), (12, 2362227), (14, 2024766), (18, 1574818), (21, 1349844), (28, 1012383), (36, 787409), (42, 674922), (63, 449948), (84, 337461), (126, 224974), (197, 143892), (252, 112487), (394, 71946), (571, 49644), (591, 47964), (788, 35973), (1142, 24822), (1182, 23982), (1379, 20556), (1713, 16548), (1773, 15988), (2284, 12411), (2364, 11991), (2758, 10278), (3426, 8274), (3546, 7994), (3997, 7092), (4137, 6852), (5139, 5516)]