17129980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3947}}^1$

素因数の和:3994

約数の個数: 48

約数和(自身を含む): 42448896

約数和(自身を除く): 25318916

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 3947, 4340, 7894, 15788, 19735, 27629, 39470, 55258, 78940, 110516, 122357, 138145, 244714, 276290, 489428, 552580, 611785, 856499, 1223570, 1712998, 2447140, 3425996, 4282495, 8564990, 17129980]

約数ペア:

[(1, 17129980), (2, 8564990), (4, 4282495), (5, 3425996), (7, 2447140), (10, 1712998), (14, 1223570), (20, 856499), (28, 611785), (31, 552580), (35, 489428), (62, 276290), (70, 244714), (124, 138145), (140, 122357), (155, 110516), (217, 78940), (310, 55258), (434, 39470), (620, 27629), (868, 19735), (1085, 15788), (2170, 7894), (3947, 4340)]