81528628

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 153090000

約数和(自身を除く): 71561372

約数列:

[1, 2, 4, 29, 53, 58, 89, 106, 116, 149, 178, 212, 298, 356, 596, 1537, 2581, 3074, 4321, 4717, 5162, 6148, 7897, 8642, 9434, 10324, 13261, 15794, 17284, 18868, 26522, 31588, 53044, 136793, 229013, 273586, 384569, 458026, 547172, 702833, 769138, 916052, 1405666, 1538276, 2811332, 20382157, 40764314, 81528628]

約数ペア:

[(1, 81528628), (2, 40764314), (4, 20382157), (29, 2811332), (53, 1538276), (58, 1405666), (89, 916052), (106, 769138), (116, 702833), (149, 547172), (178, 458026), (212, 384569), (298, 273586), (356, 229013), (596, 136793), (1537, 53044), (2581, 31588), (3074, 26522), (4321, 18868), (4717, 17284), (5162, 15794), (6148, 13261), (7897, 10324), (8642, 9434)]