84805520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{491}}^1$

素因数の和:648

約数の個数: 80

約数和(自身を含む): 210843648

約数和(自身を除く): 126038128

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 127, 136, 170, 254, 272, 340, 491, 508, 635, 680, 982, 1016, 1270, 1360, 1964, 2032, 2159, 2455, 2540, 3928, 4318, 4910, 5080, 7856, 8347, 8636, 9820, 10160, 10795, 16694, 17272, 19640, 21590, 33388, 34544, 39280, 41735, 43180, 62357, 66776, 83470, 86360, 124714, 133552, 166940, 172720, 249428, 311785, 333880, 498856, 623570, 667760, 997712, 1060069, 1247140, 2120138, 2494280, 4240276, 4988560, 5300345, 8480552, 10600690, 16961104, 21201380, 42402760, 84805520]

約数ペア:

[(1, 84805520), (2, 42402760), (4, 21201380), (5, 16961104), (8, 10600690), (10, 8480552), (16, 5300345), (17, 4988560), (20, 4240276), (34, 2494280), (40, 2120138), (68, 1247140), (80, 1060069), (85, 997712), (127, 667760), (136, 623570), (170, 498856), (254, 333880), (272, 311785), (340, 249428), (491, 172720), (508, 166940), (635, 133552), (680, 124714), (982, 86360), (1016, 83470), (1270, 66776), (1360, 62357), (1964, 43180), (2032, 41735), (2159, 39280), (2455, 34544), (2540, 33388), (3928, 21590), (4318, 19640), (4910, 17272), (5080, 16694), (7856, 10795), (8347, 10160), (8636, 9820)]