8691280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:224

約数の個数: 80

約数和(自身を含む): 22279824

約数和(自身を除く): 13588544

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 61, 65, 80, 104, 122, 130, 137, 208, 244, 260, 274, 305, 488, 520, 548, 610, 685, 793, 976, 1040, 1096, 1220, 1370, 1586, 1781, 2192, 2440, 2740, 3172, 3562, 3965, 4880, 5480, 6344, 7124, 7930, 8357, 8905, 10960, 12688, 14248, 15860, 16714, 17810, 28496, 31720, 33428, 35620, 41785, 63440, 66856, 71240, 83570, 108641, 133712, 142480, 167140, 217282, 334280, 434564, 543205, 668560, 869128, 1086410, 1738256, 2172820, 4345640, 8691280]

約数ペア:

[(1, 8691280), (2, 4345640), (4, 2172820), (5, 1738256), (8, 1086410), (10, 869128), (13, 668560), (16, 543205), (20, 434564), (26, 334280), (40, 217282), (52, 167140), (61, 142480), (65, 133712), (80, 108641), (104, 83570), (122, 71240), (130, 66856), (137, 63440), (208, 41785), (244, 35620), (260, 33428), (274, 31720), (305, 28496), (488, 17810), (520, 16714), (548, 15860), (610, 14248), (685, 12688), (793, 10960), (976, 8905), (1040, 8357), (1096, 7930), (1220, 7124), (1370, 6344), (1586, 5480), (1781, 4880), (2192, 3965), (2440, 3562), (2740, 3172)]