1640894210

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1\times {\mathrm{223}}^1$

素因数の和:539

約数の個数: 64

約数和(自身を含む): 3084770304

約数和(自身を除く): 1443876094

約数列:

[1, 2, 5, 10, 41, 82, 131, 137, 205, 223, 262, 274, 410, 446, 655, 685, 1115, 1310, 1370, 2230, 5371, 5617, 9143, 10742, 11234, 17947, 18286, 26855, 28085, 29213, 30551, 35894, 45715, 53710, 56170, 58426, 61102, 89735, 91430, 146065, 152755, 179470, 292130, 305510, 735827, 1197733, 1252591, 1471654, 2395466, 2505182, 3679135, 4002181, 5988665, 6262955, 7358270, 8004362, 11977330, 12525910, 20010905, 40021810, 164089421, 328178842, 820447105, 1640894210]

約数ペア:

[(1, 1640894210), (2, 820447105), (5, 328178842), (10, 164089421), (41, 40021810), (82, 20010905), (131, 12525910), (137, 11977330), (205, 8004362), (223, 7358270), (262, 6262955), (274, 5988665), (410, 4002181), (446, 3679135), (655, 2505182), (685, 2395466), (1115, 1471654), (1310, 1252591), (1370, 1197733), (2230, 735827), (5371, 305510), (5617, 292130), (9143, 179470), (10742, 152755), (11234, 146065), (17947, 91430), (18286, 89735), (26855, 61102), (28085, 58426), (29213, 56170), (30551, 53710), (35894, 45715)]