820142988

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{26317}}^1$

素因数の和:26391

約数の個数: 72

約数和(自身を含む): 2268190512

約数和(自身を除く): 1448047524

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 53, 84, 98, 106, 147, 159, 196, 212, 294, 318, 371, 588, 636, 742, 1113, 1484, 2226, 2597, 4452, 5194, 7791, 10388, 15582, 26317, 31164, 52634, 78951, 105268, 157902, 184219, 315804, 368438, 552657, 736876, 1105314, 1289533, 1394801, 2210628, 2579066, 2789602, 3868599, 4184403, 5158132, 5579204, 7737198, 8368806, 9763607, 15474396, 16737612, 19527214, 29290821, 39054428, 58581642, 68345249, 117163284, 136690498, 205035747, 273380996, 410071494, 820142988]

約数ペア:

[(1, 820142988), (2, 410071494), (3, 273380996), (4, 205035747), (6, 136690498), (7, 117163284), (12, 68345249), (14, 58581642), (21, 39054428), (28, 29290821), (42, 19527214), (49, 16737612), (53, 15474396), (84, 9763607), (98, 8368806), (106, 7737198), (147, 5579204), (159, 5158132), (196, 4184403), (212, 3868599), (294, 2789602), (318, 2579066), (371, 2210628), (588, 1394801), (636, 1289533), (742, 1105314), (1113, 736876), (1484, 552657), (2226, 368438), (2597, 315804), (4452, 184219), (5194, 157902), (7791, 105268), (10388, 78951), (15582, 52634), (26317, 31164)]