81404470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{227}}^1$

素因数の和:397

約数の個数: 64

約数和(自身を含む): 173352960

約数和(自身を除く): 91948490

約数列:

[1, 2, 5, 7, 10, 14, 35, 47, 70, 94, 109, 218, 227, 235, 329, 454, 470, 545, 658, 763, 1090, 1135, 1526, 1589, 1645, 2270, 3178, 3290, 3815, 5123, 7630, 7945, 10246, 10669, 15890, 21338, 24743, 25615, 35861, 49486, 51230, 53345, 71722, 74683, 106690, 123715, 149366, 173201, 179305, 247430, 346402, 358610, 373415, 746830, 866005, 1162921, 1732010, 2325842, 5814605, 8140447, 11629210, 16280894, 40702235, 81404470]

約数ペア:

[(1, 81404470), (2, 40702235), (5, 16280894), (7, 11629210), (10, 8140447), (14, 5814605), (35, 2325842), (47, 1732010), (70, 1162921), (94, 866005), (109, 746830), (218, 373415), (227, 358610), (235, 346402), (329, 247430), (454, 179305), (470, 173201), (545, 149366), (658, 123715), (763, 106690), (1090, 74683), (1135, 71722), (1526, 53345), (1589, 51230), (1645, 49486), (2270, 35861), (3178, 25615), (3290, 24743), (3815, 21338), (5123, 15890), (7630, 10669), (7945, 10246)]