66909830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{263}}^1$

素因数の和:405

約数の個数: 64

約数和(自身を含む): 138378240

約数和(自身を除く): 71468410

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 103, 130, 190, 206, 247, 263, 494, 515, 526, 1030, 1235, 1315, 1339, 1957, 2470, 2630, 2678, 3419, 3914, 4997, 6695, 6838, 9785, 9994, 13390, 17095, 19570, 24985, 25441, 27089, 34190, 49970, 50882, 54178, 64961, 127205, 129922, 135445, 254410, 270890, 324805, 352157, 514691, 649610, 704314, 1029382, 1760785, 2573455, 3521570, 5146910, 6690983, 13381966, 33454915, 66909830]

約数ペア:

[(1, 66909830), (2, 33454915), (5, 13381966), (10, 6690983), (13, 5146910), (19, 3521570), (26, 2573455), (38, 1760785), (65, 1029382), (95, 704314), (103, 649610), (130, 514691), (190, 352157), (206, 324805), (247, 270890), (263, 254410), (494, 135445), (515, 129922), (526, 127205), (1030, 64961), (1235, 54178), (1315, 50882), (1339, 49970), (1957, 34190), (2470, 27089), (2630, 25441), (2678, 24985), (3419, 19570), (3914, 17095), (4997, 13390), (6695, 9994), (6838, 9785)]