201720145

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1\times {\mathrm{227}}^1$

素因数の和:501

約数の個数: 32

約数和(自身を含む): 269485056

約数和(自身を除く): 67764911

約数列:

[1, 5, 11, 55, 107, 151, 227, 535, 755, 1135, 1177, 1661, 2497, 5885, 8305, 12485, 16157, 24289, 34277, 80785, 121445, 171385, 177727, 267179, 377047, 888635, 1335895, 1885235, 3667639, 18338195, 40344029, 201720145]

約数ペア:

[(1, 201720145), (5, 40344029), (11, 18338195), (55, 3667639), (107, 1885235), (151, 1335895), (227, 888635), (535, 377047), (755, 267179), (1135, 177727), (1177, 171385), (1661, 121445), (2497, 80785), (5885, 34277), (8305, 24289), (12485, 16157)]