51813400

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:245

約数の個数: 96

約数和(自身を含む): 127313280

約数和(自身を除く): 75499880

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 61, 62, 100, 122, 124, 137, 155, 200, 244, 248, 274, 305, 310, 488, 548, 610, 620, 685, 775, 1096, 1220, 1240, 1370, 1525, 1550, 1891, 2440, 2740, 3050, 3100, 3425, 3782, 4247, 5480, 6100, 6200, 6850, 7564, 8357, 8494, 9455, 12200, 13700, 15128, 16714, 16988, 18910, 21235, 27400, 33428, 33976, 37820, 41785, 42470, 47275, 66856, 75640, 83570, 84940, 94550, 106175, 167140, 169880, 189100, 208925, 212350, 259067, 334280, 378200, 417850, 424700, 518134, 835700, 849400, 1036268, 1295335, 1671400, 2072536, 2590670, 5181340, 6476675, 10362680, 12953350, 25906700, 51813400]

約数ペア:

[(1, 51813400), (2, 25906700), (4, 12953350), (5, 10362680), (8, 6476675), (10, 5181340), (20, 2590670), (25, 2072536), (31, 1671400), (40, 1295335), (50, 1036268), (61, 849400), (62, 835700), (100, 518134), (122, 424700), (124, 417850), (137, 378200), (155, 334280), (200, 259067), (244, 212350), (248, 208925), (274, 189100), (305, 169880), (310, 167140), (488, 106175), (548, 94550), (610, 84940), (620, 83570), (685, 75640), (775, 66856), (1096, 47275), (1220, 42470), (1240, 41785), (1370, 37820), (1525, 33976), (1550, 33428), (1891, 27400), (2440, 21235), (2740, 18910), (3050, 16988), (3100, 16714), (3425, 15128), (3782, 13700), (4247, 12200), (5480, 9455), (6100, 8494), (6200, 8357), (6850, 7564)]