20191990210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{317}}^1\times {\mathrm{53527}}^1$

素因数の和:53875

約数の個数: 64

約数和(自身を含む): 44120775168

約数和(自身を除く): 23928784958

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 119, 170, 238, 317, 595, 634, 1190, 1585, 2219, 3170, 4438, 5389, 10778, 11095, 22190, 26945, 37723, 53527, 53890, 75446, 107054, 188615, 267635, 374689, 377230, 535270, 749378, 909959, 1819918, 1873445, 3746890, 4549795, 6369713, 9099590, 12739426, 16968059, 31848565, 33936118, 63697130, 84840295, 118776413, 169680590, 237552826, 288457003, 576914006, 593882065, 1187764130, 1442285015, 2019199021, 2884570030, 4038398042, 10095995105, 20191990210]

約数ペア:

[(1, 20191990210), (2, 10095995105), (5, 4038398042), (7, 2884570030), (10, 2019199021), (14, 1442285015), (17, 1187764130), (34, 593882065), (35, 576914006), (70, 288457003), (85, 237552826), (119, 169680590), (170, 118776413), (238, 84840295), (317, 63697130), (595, 33936118), (634, 31848565), (1190, 16968059), (1585, 12739426), (2219, 9099590), (3170, 6369713), (4438, 4549795), (5389, 3746890), (10778, 1873445), (11095, 1819918), (22190, 909959), (26945, 749378), (37723, 535270), (53527, 377230), (53890, 374689), (75446, 267635), (107054, 188615)]