80394340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:257

約数の個数: 96

約数和(自身を含む): 191175264

約数和(自身を除く): 110780924

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 61, 65, 74, 122, 130, 137, 148, 185, 244, 260, 274, 305, 370, 481, 548, 610, 685, 740, 793, 962, 1220, 1370, 1586, 1781, 1924, 2257, 2405, 2740, 3172, 3562, 3965, 4514, 4810, 5069, 7124, 7930, 8357, 8905, 9028, 9620, 10138, 11285, 15860, 16714, 17810, 20276, 22570, 25345, 29341, 33428, 35620, 41785, 45140, 50690, 58682, 65897, 83570, 101380, 108641, 117364, 131794, 146705, 167140, 217282, 263588, 293410, 309209, 329485, 434564, 543205, 586820, 618418, 658970, 1086410, 1236836, 1317940, 1546045, 2172820, 3092090, 4019717, 6184180, 8039434, 16078868, 20098585, 40197170, 80394340]

約数ペア:

[(1, 80394340), (2, 40197170), (4, 20098585), (5, 16078868), (10, 8039434), (13, 6184180), (20, 4019717), (26, 3092090), (37, 2172820), (52, 1546045), (61, 1317940), (65, 1236836), (74, 1086410), (122, 658970), (130, 618418), (137, 586820), (148, 543205), (185, 434564), (244, 329485), (260, 309209), (274, 293410), (305, 263588), (370, 217282), (481, 167140), (548, 146705), (610, 131794), (685, 117364), (740, 108641), (793, 101380), (962, 83570), (1220, 65897), (1370, 58682), (1586, 50690), (1781, 45140), (1924, 41785), (2257, 35620), (2405, 33428), (2740, 29341), (3172, 25345), (3562, 22570), (3965, 20276), (4514, 17810), (4810, 16714), (5069, 15860), (7124, 11285), (7930, 10138), (8357, 9620), (8905, 9028)]