201718055

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{89}}^1$

素因数の和:177

約数の個数: 72

約数和(自身を含む): 321712560

約数和(自身を除く): 119994505

約数列:

[1, 5, 7, 11, 29, 35, 49, 55, 77, 89, 145, 203, 245, 319, 385, 445, 539, 623, 841, 979, 1015, 1421, 1595, 2233, 2581, 2695, 3115, 4205, 4361, 4895, 5887, 6853, 7105, 9251, 11165, 12905, 15631, 18067, 21805, 28391, 29435, 34265, 41209, 46255, 47971, 64757, 74849, 78155, 90335, 126469, 141955, 198737, 206045, 239855, 323785, 374245, 453299, 523943, 632345, 823339, 993685, 1391159, 2266495, 2619715, 3667601, 4116695, 5763373, 6955795, 18338005, 28816865, 40343611, 201718055]

約数ペア:

[(1, 201718055), (5, 40343611), (7, 28816865), (11, 18338005), (29, 6955795), (35, 5763373), (49, 4116695), (55, 3667601), (77, 2619715), (89, 2266495), (145, 1391159), (203, 993685), (245, 823339), (319, 632345), (385, 523943), (445, 453299), (539, 374245), (623, 323785), (841, 239855), (979, 206045), (1015, 198737), (1421, 141955), (1595, 126469), (2233, 90335), (2581, 78155), (2695, 74849), (3115, 64757), (4205, 47971), (4361, 46255), (4895, 41209), (5887, 34265), (6853, 29435), (7105, 28391), (9251, 21805), (11165, 18067), (12905, 15631)]