77887240

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{233}}^1$

素因数の和:442

約数の個数: 64

約数和(自身を含む): 180189360

約数和(自身を除く): 102302120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 137, 233, 244, 274, 305, 466, 488, 548, 610, 685, 932, 1096, 1165, 1220, 1370, 1864, 2330, 2440, 2740, 4660, 5480, 8357, 9320, 14213, 16714, 28426, 31921, 33428, 41785, 56852, 63842, 66856, 71065, 83570, 113704, 127684, 142130, 159605, 167140, 255368, 284260, 319210, 334280, 568520, 638420, 1276840, 1947181, 3894362, 7788724, 9735905, 15577448, 19471810, 38943620, 77887240]

約数ペア:

[(1, 77887240), (2, 38943620), (4, 19471810), (5, 15577448), (8, 9735905), (10, 7788724), (20, 3894362), (40, 1947181), (61, 1276840), (122, 638420), (137, 568520), (233, 334280), (244, 319210), (274, 284260), (305, 255368), (466, 167140), (488, 159605), (548, 142130), (610, 127684), (685, 113704), (932, 83570), (1096, 71065), (1165, 66856), (1220, 63842), (1370, 56852), (1864, 41785), (2330, 33428), (2440, 31921), (2740, 28426), (4660, 16714), (5480, 14213), (8357, 9320)]