71856820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:257

約数の個数: 96

約数和(自身を含む): 179020800

約数和(自身を除く): 107163980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 79, 89, 140, 146, 158, 178, 292, 316, 356, 365, 395, 445, 511, 553, 623, 730, 790, 890, 1022, 1106, 1246, 1460, 1580, 1780, 2044, 2212, 2492, 2555, 2765, 3115, 5110, 5530, 5767, 6230, 6497, 7031, 10220, 11060, 11534, 12460, 12994, 14062, 23068, 25988, 28124, 28835, 32485, 35155, 40369, 45479, 49217, 57670, 64970, 70310, 80738, 90958, 98434, 115340, 129940, 140620, 161476, 181916, 196868, 201845, 227395, 246085, 403690, 454790, 492170, 513263, 807380, 909580, 984340, 1026526, 2053052, 2566315, 3592841, 5132630, 7185682, 10265260, 14371364, 17964205, 35928410, 71856820]

約数ペア:

[(1, 71856820), (2, 35928410), (4, 17964205), (5, 14371364), (7, 10265260), (10, 7185682), (14, 5132630), (20, 3592841), (28, 2566315), (35, 2053052), (70, 1026526), (73, 984340), (79, 909580), (89, 807380), (140, 513263), (146, 492170), (158, 454790), (178, 403690), (292, 246085), (316, 227395), (356, 201845), (365, 196868), (395, 181916), (445, 161476), (511, 140620), (553, 129940), (623, 115340), (730, 98434), (790, 90958), (890, 80738), (1022, 70310), (1106, 64970), (1246, 57670), (1460, 49217), (1580, 45479), (1780, 40369), (2044, 35155), (2212, 32485), (2492, 28835), (2555, 28124), (2765, 25988), (3115, 23068), (5110, 14062), (5530, 12994), (5767, 12460), (6230, 11534), (6497, 11060), (7031, 10220)]