7138720520

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1\times {\mathrm{17093}}^1$

素因数の和:17354

約数の個数: 64

約数和(自身を含む): 16449214320

約数和(自身を除く): 9310493800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 197, 212, 265, 394, 424, 530, 788, 985, 1060, 1576, 1970, 2120, 3940, 7880, 10441, 17093, 20882, 34186, 41764, 52205, 68372, 83528, 85465, 104410, 136744, 170930, 208820, 341860, 417640, 683720, 905929, 1811858, 3367321, 3623716, 4529645, 6734642, 7247432, 9059290, 13469284, 16836605, 18118580, 26938568, 33673210, 36237160, 67346420, 134692840, 178468013, 356936026, 713872052, 892340065, 1427744104, 1784680130, 3569360260, 7138720520]

約数ペア:

[(1, 7138720520), (2, 3569360260), (4, 1784680130), (5, 1427744104), (8, 892340065), (10, 713872052), (20, 356936026), (40, 178468013), (53, 134692840), (106, 67346420), (197, 36237160), (212, 33673210), (265, 26938568), (394, 18118580), (424, 16836605), (530, 13469284), (788, 9059290), (985, 7247432), (1060, 6734642), (1576, 4529645), (1970, 3623716), (2120, 3367321), (3940, 1811858), (7880, 905929), (10441, 683720), (17093, 417640), (20882, 341860), (34186, 208820), (41764, 170930), (52205, 136744), (68372, 104410), (83528, 85465)]