1720339990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{5171}}^1$

素因数の和:5317

約数の個数: 64

約数和(自身を含む): 3485514240

約数和(自身を除く): 1765174250

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 85, 95, 103, 170, 190, 206, 323, 515, 646, 1030, 1615, 1751, 1957, 3230, 3502, 3914, 5171, 8755, 9785, 10342, 17510, 19570, 25855, 33269, 51710, 66538, 87907, 98249, 166345, 175814, 196498, 332690, 439535, 491245, 532613, 879070, 982490, 1065226, 1670233, 2663065, 3340466, 5326130, 8351165, 9054421, 10119647, 16702330, 18108842, 20239294, 45272105, 50598235, 90544210, 101196470, 172033999, 344067998, 860169995, 1720339990]

約数ペア:

[(1, 1720339990), (2, 860169995), (5, 344067998), (10, 172033999), (17, 101196470), (19, 90544210), (34, 50598235), (38, 45272105), (85, 20239294), (95, 18108842), (103, 16702330), (170, 10119647), (190, 9054421), (206, 8351165), (323, 5326130), (515, 3340466), (646, 2663065), (1030, 1670233), (1615, 1065226), (1751, 982490), (1957, 879070), (3230, 532613), (3502, 491245), (3914, 439535), (5171, 332690), (8755, 196498), (9785, 175814), (10342, 166345), (17510, 98249), (19570, 87907), (25855, 66538), (33269, 51710)]