30731540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:217

約数の個数: 96

約数和(自身を含む): 77973504

約数和(自身を除く): 47241964

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 73, 97, 124, 140, 146, 155, 194, 217, 292, 310, 365, 388, 434, 485, 511, 620, 679, 730, 868, 970, 1022, 1085, 1358, 1460, 1940, 2044, 2170, 2263, 2555, 2716, 3007, 3395, 4340, 4526, 5110, 6014, 6790, 7081, 9052, 10220, 11315, 12028, 13580, 14162, 15035, 15841, 21049, 22630, 28324, 30070, 31682, 35405, 42098, 45260, 49567, 60140, 63364, 70810, 79205, 84196, 99134, 105245, 141620, 158410, 198268, 210490, 219511, 247835, 316820, 420980, 439022, 495670, 878044, 991340, 1097555, 1536577, 2195110, 3073154, 4390220, 6146308, 7682885, 15365770, 30731540]

約数ペア:

[(1, 30731540), (2, 15365770), (4, 7682885), (5, 6146308), (7, 4390220), (10, 3073154), (14, 2195110), (20, 1536577), (28, 1097555), (31, 991340), (35, 878044), (62, 495670), (70, 439022), (73, 420980), (97, 316820), (124, 247835), (140, 219511), (146, 210490), (155, 198268), (194, 158410), (217, 141620), (292, 105245), (310, 99134), (365, 84196), (388, 79205), (434, 70810), (485, 63364), (511, 60140), (620, 49567), (679, 45260), (730, 42098), (868, 35405), (970, 31682), (1022, 30070), (1085, 28324), (1358, 22630), (1460, 21049), (1940, 15841), (2044, 15035), (2170, 14162), (2263, 13580), (2555, 12028), (2716, 11315), (3007, 10220), (3395, 9052), (4340, 7081), (4526, 6790), (5110, 6014)]