80346760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:251

約数の個数: 128

約数和(自身を含む): 210924000

約数和(自身を除く): 130577240

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 61, 65, 68, 85, 104, 122, 130, 136, 149, 170, 221, 244, 260, 298, 305, 340, 442, 488, 520, 596, 610, 680, 745, 793, 884, 1037, 1105, 1192, 1220, 1490, 1586, 1768, 1937, 2074, 2210, 2440, 2533, 2980, 3172, 3874, 3965, 4148, 4420, 5066, 5185, 5960, 6344, 7748, 7930, 8296, 8840, 9089, 9685, 10132, 10370, 12665, 13481, 15496, 15860, 18178, 19370, 20264, 20740, 25330, 26962, 31720, 32929, 36356, 38740, 41480, 45445, 50660, 53924, 65858, 67405, 72712, 77480, 90890, 101320, 107848, 118157, 131716, 134810, 154513, 164645, 181780, 236314, 263432, 269620, 309026, 329290, 363560, 472628, 539240, 590785, 618052, 658580, 772565, 945256, 1181570, 1236104, 1317160, 1545130, 2008669, 2363140, 3090260, 4017338, 4726280, 6180520, 8034676, 10043345, 16069352, 20086690, 40173380, 80346760]

約数ペア:

[(1, 80346760), (2, 40173380), (4, 20086690), (5, 16069352), (8, 10043345), (10, 8034676), (13, 6180520), (17, 4726280), (20, 4017338), (26, 3090260), (34, 2363140), (40, 2008669), (52, 1545130), (61, 1317160), (65, 1236104), (68, 1181570), (85, 945256), (104, 772565), (122, 658580), (130, 618052), (136, 590785), (149, 539240), (170, 472628), (221, 363560), (244, 329290), (260, 309026), (298, 269620), (305, 263432), (340, 236314), (442, 181780), (488, 164645), (520, 154513), (596, 134810), (610, 131716), (680, 118157), (745, 107848), (793, 101320), (884, 90890), (1037, 77480), (1105, 72712), (1192, 67405), (1220, 65858), (1490, 53924), (1586, 50660), (1768, 45445), (1937, 41480), (2074, 38740), (2210, 36356), (2440, 32929), (2533, 31720), (2980, 26962), (3172, 25330), (3874, 20740), (3965, 20264), (4148, 19370), (4420, 18178), (5066, 15860), (5185, 15496), (5960, 13481), (6344, 12665), (7748, 10370), (7930, 10132), (8296, 9685), (8840, 9089)]