72670280

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:386

約数の個数: 64

約数和(自身を含む): 167670000

約数和(自身を除く): 94999720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 137, 149, 178, 274, 298, 356, 445, 548, 596, 685, 712, 745, 890, 1096, 1192, 1370, 1490, 1780, 2740, 2980, 3560, 5480, 5960, 12193, 13261, 20413, 24386, 26522, 40826, 48772, 53044, 60965, 66305, 81652, 97544, 102065, 106088, 121930, 132610, 163304, 204130, 243860, 265220, 408260, 487720, 530440, 816520, 1816757, 3633514, 7267028, 9083785, 14534056, 18167570, 36335140, 72670280]

約数ペア:

[(1, 72670280), (2, 36335140), (4, 18167570), (5, 14534056), (8, 9083785), (10, 7267028), (20, 3633514), (40, 1816757), (89, 816520), (137, 530440), (149, 487720), (178, 408260), (274, 265220), (298, 243860), (356, 204130), (445, 163304), (548, 132610), (596, 121930), (685, 106088), (712, 102065), (745, 97544), (890, 81652), (1096, 66305), (1192, 60965), (1370, 53044), (1490, 48772), (1780, 40826), (2740, 26522), (2980, 24386), (3560, 20413), (5480, 13261), (5960, 12193)]