1812749720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1033}}^1\times {\mathrm{2309}}^1$

素因数の和:3372

約数の個数: 64

約数和(自身を含む): 4299372000

約数和(自身を除く): 2486622280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 1033, 2066, 2309, 4132, 4618, 5165, 8264, 9236, 10330, 11545, 18472, 19627, 20660, 23090, 39254, 41320, 43871, 46180, 78508, 87742, 92360, 98135, 157016, 175484, 196270, 219355, 350968, 392540, 438710, 785080, 877420, 1754840, 2385197, 4770394, 9540788, 11925985, 19081576, 23851970, 45318743, 47703940, 90637486, 95407880, 181274972, 226593715, 362549944, 453187430, 906374860, 1812749720]

約数ペア:

[(1, 1812749720), (2, 906374860), (4, 453187430), (5, 362549944), (8, 226593715), (10, 181274972), (19, 95407880), (20, 90637486), (38, 47703940), (40, 45318743), (76, 23851970), (95, 19081576), (152, 11925985), (190, 9540788), (380, 4770394), (760, 2385197), (1033, 1754840), (2066, 877420), (2309, 785080), (4132, 438710), (4618, 392540), (5165, 350968), (8264, 219355), (9236, 196270), (10330, 175484), (11545, 157016), (18472, 98135), (19627, 92360), (20660, 87742), (23090, 78508), (39254, 46180), (41320, 43871)]