81634360

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{997}}^1$

素因数の和:1120

約数の個数: 64

約数和(自身を含む): 194011200

約数和(自身を除く): 112376840

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 89, 92, 115, 178, 184, 230, 356, 445, 460, 712, 890, 920, 997, 1780, 1994, 2047, 3560, 3988, 4094, 4985, 7976, 8188, 9970, 10235, 16376, 19940, 20470, 22931, 39880, 40940, 45862, 81880, 88733, 91724, 114655, 177466, 183448, 229310, 354932, 443665, 458620, 709864, 887330, 917240, 1774660, 2040859, 3549320, 4081718, 8163436, 10204295, 16326872, 20408590, 40817180, 81634360]

約数ペア:

[(1, 81634360), (2, 40817180), (4, 20408590), (5, 16326872), (8, 10204295), (10, 8163436), (20, 4081718), (23, 3549320), (40, 2040859), (46, 1774660), (89, 917240), (92, 887330), (115, 709864), (178, 458620), (184, 443665), (230, 354932), (356, 229310), (445, 183448), (460, 177466), (712, 114655), (890, 91724), (920, 88733), (997, 81880), (1780, 45862), (1994, 40940), (2047, 39880), (3560, 22931), (3988, 20470), (4094, 19940), (4985, 16376), (7976, 10235), (8188, 9970)]