81080320

素因数分解:

$2^{12}\times 5^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1$

素因数の和:173

約数の個数: 104

約数和(自身を含む): 201695184

約数和(自身を除く): 120614864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 107, 128, 148, 160, 185, 214, 256, 296, 320, 370, 428, 512, 535, 592, 640, 740, 856, 1024, 1070, 1184, 1280, 1480, 1712, 2048, 2140, 2368, 2560, 2960, 3424, 3959, 4096, 4280, 4736, 5120, 5920, 6848, 7918, 8560, 9472, 10240, 11840, 13696, 15836, 17120, 18944, 19795, 20480, 23680, 27392, 31672, 34240, 37888, 39590, 47360, 54784, 63344, 68480, 75776, 79180, 94720, 109568, 126688, 136960, 151552, 158360, 189440, 219136, 253376, 273920, 316720, 378880, 438272, 506752, 547840, 633440, 757760, 1013504, 1095680, 1266880, 2027008, 2191360, 2533760, 4054016, 5067520, 8108032, 10135040, 16216064, 20270080, 40540160, 81080320]

約数ペア:

[(1, 81080320), (2, 40540160), (4, 20270080), (5, 16216064), (8, 10135040), (10, 8108032), (16, 5067520), (20, 4054016), (32, 2533760), (37, 2191360), (40, 2027008), (64, 1266880), (74, 1095680), (80, 1013504), (107, 757760), (128, 633440), (148, 547840), (160, 506752), (185, 438272), (214, 378880), (256, 316720), (296, 273920), (320, 253376), (370, 219136), (428, 189440), (512, 158360), (535, 151552), (592, 136960), (640, 126688), (740, 109568), (856, 94720), (1024, 79180), (1070, 75776), (1184, 68480), (1280, 63344), (1480, 54784), (1712, 47360), (2048, 39590), (2140, 37888), (2368, 34240), (2560, 31672), (2960, 27392), (3424, 23680), (3959, 20480), (4096, 19795), (4280, 18944), (4736, 17120), (5120, 15836), (5920, 13696), (6848, 11840), (7918, 10240), (8560, 9472)]