163268720

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{997}}^1$

素因数の和:1122

約数の個数: 80

約数和(自身を含む): 400956480

約数和(自身を除く): 237687760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 89, 92, 115, 178, 184, 230, 356, 368, 445, 460, 712, 890, 920, 997, 1424, 1780, 1840, 1994, 2047, 3560, 3988, 4094, 4985, 7120, 7976, 8188, 9970, 10235, 15952, 16376, 19940, 20470, 22931, 32752, 39880, 40940, 45862, 79760, 81880, 88733, 91724, 114655, 163760, 177466, 183448, 229310, 354932, 366896, 443665, 458620, 709864, 887330, 917240, 1419728, 1774660, 1834480, 2040859, 3549320, 4081718, 7098640, 8163436, 10204295, 16326872, 20408590, 32653744, 40817180, 81634360, 163268720]

約数ペア:

[(1, 163268720), (2, 81634360), (4, 40817180), (5, 32653744), (8, 20408590), (10, 16326872), (16, 10204295), (20, 8163436), (23, 7098640), (40, 4081718), (46, 3549320), (80, 2040859), (89, 1834480), (92, 1774660), (115, 1419728), (178, 917240), (184, 887330), (230, 709864), (356, 458620), (368, 443665), (445, 366896), (460, 354932), (712, 229310), (890, 183448), (920, 177466), (997, 163760), (1424, 114655), (1780, 91724), (1840, 88733), (1994, 81880), (2047, 79760), (3560, 45862), (3988, 40940), (4094, 39880), (4985, 32752), (7120, 22931), (7976, 20470), (8188, 19940), (9970, 16376), (10235, 15952)]