220129525

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{661}}^1$

素因数の和:862

約数の個数: 48

約数和(自身を含む): 342799488

約数和(自身を除く): 122669963

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 173, 175, 275, 385, 661, 865, 1211, 1903, 1925, 3305, 4325, 4627, 6055, 7271, 9515, 13321, 16525, 23135, 30275, 36355, 47575, 50897, 66605, 114353, 115675, 181775, 254485, 333025, 571765, 800471, 1257883, 1272425, 2858825, 4002355, 6289415, 8805181, 20011775, 31447075, 44025905, 220129525]

約数ペア:

[(1, 220129525), (5, 44025905), (7, 31447075), (11, 20011775), (25, 8805181), (35, 6289415), (55, 4002355), (77, 2858825), (173, 1272425), (175, 1257883), (275, 800471), (385, 571765), (661, 333025), (865, 254485), (1211, 181775), (1903, 115675), (1925, 114353), (3305, 66605), (4325, 50897), (4627, 47575), (6055, 36355), (7271, 30275), (9515, 23135), (13321, 16525)]