28394835

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:408

約数の個数: 64

約数和(自身を含む): 56094720

約数和(自身を除く): 27699885

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 43, 57, 95, 105, 129, 133, 215, 285, 301, 331, 399, 645, 665, 817, 903, 993, 1505, 1655, 1995, 2317, 2451, 4085, 4515, 4965, 5719, 6289, 6951, 11585, 12255, 14233, 17157, 18867, 28595, 31445, 34755, 42699, 44023, 71165, 85785, 94335, 99631, 132069, 213495, 220115, 270427, 298893, 498155, 660345, 811281, 1352135, 1494465, 1892989, 4056405, 5678967, 9464945, 28394835]

約数ペア:

[(1, 28394835), (3, 9464945), (5, 5678967), (7, 4056405), (15, 1892989), (19, 1494465), (21, 1352135), (35, 811281), (43, 660345), (57, 498155), (95, 298893), (105, 270427), (129, 220115), (133, 213495), (215, 132069), (285, 99631), (301, 94335), (331, 85785), (399, 71165), (645, 44023), (665, 42699), (817, 34755), (903, 31445), (993, 28595), (1505, 18867), (1655, 17157), (1995, 14233), (2317, 12255), (2451, 11585), (4085, 6951), (4515, 6289), (4965, 5719)]