30781976

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{3821}}^1$

素因数の和:3899

約数の個数: 32

約数和(自身を含む): 61916400

約数和(自身を除く): 31134424

約数列:

[1, 2, 4, 8, 19, 38, 53, 76, 106, 152, 212, 424, 1007, 2014, 3821, 4028, 7642, 8056, 15284, 30568, 72599, 145198, 202513, 290396, 405026, 580792, 810052, 1620104, 3847747, 7695494, 15390988, 30781976]

約数ペア:

[(1, 30781976), (2, 15390988), (4, 7695494), (8, 3847747), (19, 1620104), (38, 810052), (53, 580792), (76, 405026), (106, 290396), (152, 202513), (212, 145198), (424, 72599), (1007, 30568), (2014, 15284), (3821, 8056), (4028, 7642)]