30005780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2713}}^1$

素因数の和:2808

約数の個数: 48

約数和(自身を含む): 72952320

約数和(自身を除く): 42946540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 1106, 1580, 2212, 2713, 2765, 5426, 5530, 10852, 11060, 13565, 18991, 27130, 37982, 54260, 75964, 94955, 189910, 214327, 379820, 428654, 857308, 1071635, 1500289, 2143270, 3000578, 4286540, 6001156, 7501445, 15002890, 30005780]

約数ペア:

[(1, 30005780), (2, 15002890), (4, 7501445), (5, 6001156), (7, 4286540), (10, 3000578), (14, 2143270), (20, 1500289), (28, 1071635), (35, 857308), (70, 428654), (79, 379820), (140, 214327), (158, 189910), (316, 94955), (395, 75964), (553, 54260), (790, 37982), (1106, 27130), (1580, 18991), (2212, 13565), (2713, 11060), (2765, 10852), (5426, 5530)]