67689980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{653}}^1$

素因数の和:806

約数の個数: 48

約数和(自身を含む): 146349504

約数和(自身を除く): 78659524

約数列:

[1, 2, 4, 5, 10, 20, 71, 73, 142, 146, 284, 292, 355, 365, 653, 710, 730, 1306, 1420, 1460, 2612, 3265, 5183, 6530, 10366, 13060, 20732, 25915, 46363, 47669, 51830, 92726, 95338, 103660, 185452, 190676, 231815, 238345, 463630, 476690, 927260, 953380, 3384499, 6768998, 13537996, 16922495, 33844990, 67689980]

約数ペア:

[(1, 67689980), (2, 33844990), (4, 16922495), (5, 13537996), (10, 6768998), (20, 3384499), (71, 953380), (73, 927260), (142, 476690), (146, 463630), (284, 238345), (292, 231815), (355, 190676), (365, 185452), (653, 103660), (710, 95338), (730, 92726), (1306, 51830), (1420, 47669), (1460, 46363), (2612, 25915), (3265, 20732), (5183, 13060), (6530, 10366)]