20786940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5021}}^1$

素因数の和:5059

約数の個数: 72

約数和(自身を含む): 65808288

約数和(自身を除く): 45021348

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 5021, 10042, 15063, 20084, 25105, 30126, 45189, 50210, 60252, 75315, 90378, 100420, 115483, 150630, 180756, 225945, 230966, 301260, 346449, 451890, 461932, 577415, 692898, 903780, 1039347, 1154830, 1385796, 1732245, 2078694, 2309660, 3464490, 4157388, 5196735, 6928980, 10393470, 20786940]

約数ペア:

[(1, 20786940), (2, 10393470), (3, 6928980), (4, 5196735), (5, 4157388), (6, 3464490), (9, 2309660), (10, 2078694), (12, 1732245), (15, 1385796), (18, 1154830), (20, 1039347), (23, 903780), (30, 692898), (36, 577415), (45, 461932), (46, 451890), (60, 346449), (69, 301260), (90, 230966), (92, 225945), (115, 180756), (138, 150630), (180, 115483), (207, 100420), (230, 90378), (276, 75315), (345, 60252), (414, 50210), (460, 45189), (690, 30126), (828, 25105), (1035, 20084), (1380, 15063), (2070, 10042), (4140, 5021)]