26978320

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{239}}^1$

素因数の和:352

約数の個数: 80

約数和(自身を含む): 67495680

約数和(自身を除く): 40517360

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 83, 85, 136, 166, 170, 239, 272, 332, 340, 415, 478, 664, 680, 830, 956, 1195, 1328, 1360, 1411, 1660, 1912, 2390, 2822, 3320, 3824, 4063, 4780, 5644, 6640, 7055, 8126, 9560, 11288, 14110, 16252, 19120, 19837, 20315, 22576, 28220, 32504, 39674, 40630, 56440, 65008, 79348, 81260, 99185, 112880, 158696, 162520, 198370, 317392, 325040, 337229, 396740, 674458, 793480, 1348916, 1586960, 1686145, 2697832, 3372290, 5395664, 6744580, 13489160, 26978320]

約数ペア:

[(1, 26978320), (2, 13489160), (4, 6744580), (5, 5395664), (8, 3372290), (10, 2697832), (16, 1686145), (17, 1586960), (20, 1348916), (34, 793480), (40, 674458), (68, 396740), (80, 337229), (83, 325040), (85, 317392), (136, 198370), (166, 162520), (170, 158696), (239, 112880), (272, 99185), (332, 81260), (340, 79348), (415, 65008), (478, 56440), (664, 40630), (680, 39674), (830, 32504), (956, 28220), (1195, 22576), (1328, 20315), (1360, 19837), (1411, 19120), (1660, 16252), (1912, 14110), (2390, 11288), (2822, 9560), (3320, 8126), (3824, 7055), (4063, 6640), (4780, 5644)]