395556980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{217339}}^1$

素因数の和:217368

約数の個数: 48

約数和(自身を含む): 1022367360

約数和(自身を除く): 626810380

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 217339, 434678, 869356, 1086695, 1521373, 2173390, 2825407, 3042746, 4346780, 5650814, 6085492, 7606865, 11301628, 14127035, 15213730, 19777849, 28254070, 30427460, 39555698, 56508140, 79111396, 98889245, 197778490, 395556980]

約数ペア:

[(1, 395556980), (2, 197778490), (4, 98889245), (5, 79111396), (7, 56508140), (10, 39555698), (13, 30427460), (14, 28254070), (20, 19777849), (26, 15213730), (28, 14127035), (35, 11301628), (52, 7606865), (65, 6085492), (70, 5650814), (91, 4346780), (130, 3042746), (140, 2825407), (182, 2173390), (260, 1521373), (364, 1086695), (455, 869356), (910, 434678), (1820, 217339)]