787857980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{1907}}^1$

素因数の和:2163

約数の個数: 96

約数和(自身を含む): 2046352896

約数和(自身を除く): 1258494916

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 227, 260, 364, 454, 455, 908, 910, 1135, 1589, 1820, 1907, 2270, 2951, 3178, 3814, 4540, 5902, 6356, 7628, 7945, 9535, 11804, 13349, 14755, 15890, 19070, 20657, 24791, 26698, 29510, 31780, 38140, 41314, 49582, 53396, 59020, 66745, 82628, 99164, 103285, 123955, 133490, 173537, 206570, 247910, 266980, 347074, 413140, 432889, 495820, 694148, 865778, 867685, 1731556, 1735370, 2164445, 3030223, 3470740, 4328890, 5627557, 6060446, 8657780, 11255114, 12120892, 15151115, 22510228, 28137785, 30302230, 39392899, 56275570, 60604460, 78785798, 112551140, 157571596, 196964495, 393928990, 787857980]

約数ペア:

[(1, 787857980), (2, 393928990), (4, 196964495), (5, 157571596), (7, 112551140), (10, 78785798), (13, 60604460), (14, 56275570), (20, 39392899), (26, 30302230), (28, 28137785), (35, 22510228), (52, 15151115), (65, 12120892), (70, 11255114), (91, 8657780), (130, 6060446), (140, 5627557), (182, 4328890), (227, 3470740), (260, 3030223), (364, 2164445), (454, 1735370), (455, 1731556), (908, 867685), (910, 865778), (1135, 694148), (1589, 495820), (1820, 432889), (1907, 413140), (2270, 347074), (2951, 266980), (3178, 247910), (3814, 206570), (4540, 173537), (5902, 133490), (6356, 123955), (7628, 103285), (7945, 99164), (9535, 82628), (11804, 66745), (13349, 59020), (14755, 53396), (15890, 49582), (19070, 41314), (20657, 38140), (24791, 31780), (26698, 29510)]