278391780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{49891}}^1$

素因数の和:49937

約数の個数: 72

約数和(自身を含む): 871713024

約数和(自身を除く): 593321244

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 49891, 99782, 149673, 199564, 249455, 299346, 449019, 498910, 598692, 748365, 898038, 997820, 1496730, 1546621, 1796076, 2245095, 2993460, 3093242, 4490190, 4639863, 6186484, 7733105, 8980380, 9279726, 13919589, 15466210, 18559452, 23199315, 27839178, 30932420, 46398630, 55678356, 69597945, 92797260, 139195890, 278391780]

約数ペア:

[(1, 278391780), (2, 139195890), (3, 92797260), (4, 69597945), (5, 55678356), (6, 46398630), (9, 30932420), (10, 27839178), (12, 23199315), (15, 18559452), (18, 15466210), (20, 13919589), (30, 9279726), (31, 8980380), (36, 7733105), (45, 6186484), (60, 4639863), (62, 4490190), (90, 3093242), (93, 2993460), (124, 2245095), (155, 1796076), (180, 1546621), (186, 1496730), (279, 997820), (310, 898038), (372, 748365), (465, 598692), (558, 498910), (620, 449019), (930, 299346), (1116, 249455), (1395, 199564), (1860, 149673), (2790, 99782), (5580, 49891)]