8217580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{743}}^1$

素因数の和:838

約数の個数: 48

約数和(自身を含む): 19998720

約数和(自身を除く): 11781140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 743, 790, 1106, 1486, 1580, 2212, 2765, 2972, 3715, 5201, 5530, 7430, 10402, 11060, 14860, 20804, 26005, 52010, 58697, 104020, 117394, 234788, 293485, 410879, 586970, 821758, 1173940, 1643516, 2054395, 4108790, 8217580]

約数ペア:

[(1, 8217580), (2, 4108790), (4, 2054395), (5, 1643516), (7, 1173940), (10, 821758), (14, 586970), (20, 410879), (28, 293485), (35, 234788), (70, 117394), (79, 104020), (140, 58697), (158, 52010), (316, 26005), (395, 20804), (553, 14860), (743, 11060), (790, 10402), (1106, 7430), (1486, 5530), (1580, 5201), (2212, 3715), (2765, 2972)]