80712320

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:230

約数の個数: 128

約数和(自身を含む): 212058000

約数和(自身を除く): 131345680

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 89, 104, 109, 128, 130, 160, 178, 208, 218, 260, 320, 356, 416, 436, 445, 520, 545, 640, 712, 832, 872, 890, 1040, 1090, 1157, 1417, 1424, 1664, 1744, 1780, 2080, 2180, 2314, 2834, 2848, 3488, 3560, 4160, 4360, 4628, 5668, 5696, 5785, 6976, 7085, 7120, 8320, 8720, 9256, 9701, 11336, 11392, 11570, 13952, 14170, 14240, 17440, 18512, 19402, 22672, 23140, 28340, 28480, 34880, 37024, 38804, 45344, 46280, 48505, 56680, 56960, 69760, 74048, 77608, 90688, 92560, 97010, 113360, 126113, 148096, 155216, 181376, 185120, 194020, 226720, 252226, 310432, 370240, 388040, 453440, 504452, 620864, 630565, 740480, 776080, 906880, 1008904, 1241728, 1261130, 1552160, 2017808, 2522260, 3104320, 4035616, 5044520, 6208640, 8071232, 10089040, 16142464, 20178080, 40356160, 80712320]

約数ペア:

[(1, 80712320), (2, 40356160), (4, 20178080), (5, 16142464), (8, 10089040), (10, 8071232), (13, 6208640), (16, 5044520), (20, 4035616), (26, 3104320), (32, 2522260), (40, 2017808), (52, 1552160), (64, 1261130), (65, 1241728), (80, 1008904), (89, 906880), (104, 776080), (109, 740480), (128, 630565), (130, 620864), (160, 504452), (178, 453440), (208, 388040), (218, 370240), (260, 310432), (320, 252226), (356, 226720), (416, 194020), (436, 185120), (445, 181376), (520, 155216), (545, 148096), (640, 126113), (712, 113360), (832, 97010), (872, 92560), (890, 90688), (1040, 77608), (1090, 74048), (1157, 69760), (1417, 56960), (1424, 56680), (1664, 48505), (1744, 46280), (1780, 45344), (2080, 38804), (2180, 37024), (2314, 34880), (2834, 28480), (2848, 28340), (3488, 23140), (3560, 22672), (4160, 19402), (4360, 18512), (4628, 17440), (5668, 14240), (5696, 14170), (5785, 13952), (6976, 11570), (7085, 11392), (7120, 11336), (8320, 9701), (8720, 9256)]