20198391620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{128767}}^1$

素因数の和:128841

約数の個数: 96

約数和(自身を含む): 49842487296

約数和(自身を除く): 29644095676

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 31, 44, 46, 55, 62, 92, 110, 115, 124, 155, 220, 230, 253, 310, 341, 460, 506, 620, 682, 713, 1012, 1265, 1364, 1426, 1705, 2530, 2852, 3410, 3565, 5060, 6820, 7130, 7843, 14260, 15686, 31372, 39215, 78430, 128767, 156860, 257534, 515068, 643835, 1287670, 1416437, 2575340, 2832874, 2961641, 3991777, 5665748, 5923282, 7082185, 7983554, 11846564, 14164370, 14808205, 15967108, 19958885, 28328740, 29616410, 32578051, 39917770, 43909547, 59232820, 65156102, 79835540, 87819094, 91810871, 130312204, 162890255, 175638188, 183621742, 219547735, 325780510, 367243484, 439095470, 459054355, 651561020, 878190940, 918108710, 1009919581, 1836217420, 2019839162, 4039678324, 5049597905, 10099195810, 20198391620]

約数ペア:

[(1, 20198391620), (2, 10099195810), (4, 5049597905), (5, 4039678324), (10, 2019839162), (11, 1836217420), (20, 1009919581), (22, 918108710), (23, 878190940), (31, 651561020), (44, 459054355), (46, 439095470), (55, 367243484), (62, 325780510), (92, 219547735), (110, 183621742), (115, 175638188), (124, 162890255), (155, 130312204), (220, 91810871), (230, 87819094), (253, 79835540), (310, 65156102), (341, 59232820), (460, 43909547), (506, 39917770), (620, 32578051), (682, 29616410), (713, 28328740), (1012, 19958885), (1265, 15967108), (1364, 14808205), (1426, 14164370), (1705, 11846564), (2530, 7983554), (2852, 7082185), (3410, 5923282), (3565, 5665748), (5060, 3991777), (6820, 2961641), (7130, 2832874), (7843, 2575340), (14260, 1416437), (15686, 1287670), (31372, 643835), (39215, 515068), (78430, 257534), (128767, 156860)]