20348021880

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{991619}}^1$

素因数の和:991658

約数の個数: 128

約数和(自身を含む): 71396640000

約数和(自身を除く): 51048618120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 90, 95, 108, 114, 120, 135, 152, 171, 180, 190, 216, 228, 270, 285, 342, 360, 380, 456, 513, 540, 570, 684, 760, 855, 1026, 1080, 1140, 1368, 1710, 2052, 2280, 2565, 3420, 4104, 5130, 6840, 10260, 20520, 991619, 1983238, 2974857, 3966476, 4958095, 5949714, 7932952, 8924571, 9916190, 11899428, 14874285, 17849142, 18840761, 19832380, 23798856, 26773713, 29748570, 35698284, 37681522, 39664760, 44622855, 53547426, 56522283, 59497140, 71396568, 75363044, 89245710, 94203805, 107094852, 113044566, 118994280, 133868565, 150726088, 169566849, 178491420, 188407610, 214189704, 226089132, 267737130, 282611415, 339133698, 356982840, 376815220, 452178264, 508700547, 535474260, 565222830, 678267396, 753630440, 847834245, 1017401094, 1070948520, 1130445660, 1356534792, 1695668490, 2034802188, 2260891320, 2543502735, 3391336980, 4069604376, 5087005470, 6782673960, 10174010940, 20348021880]

約数ペア:

[(1, 20348021880), (2, 10174010940), (3, 6782673960), (4, 5087005470), (5, 4069604376), (6, 3391336980), (8, 2543502735), (9, 2260891320), (10, 2034802188), (12, 1695668490), (15, 1356534792), (18, 1130445660), (19, 1070948520), (20, 1017401094), (24, 847834245), (27, 753630440), (30, 678267396), (36, 565222830), (38, 535474260), (40, 508700547), (45, 452178264), (54, 376815220), (57, 356982840), (60, 339133698), (72, 282611415), (76, 267737130), (90, 226089132), (95, 214189704), (108, 188407610), (114, 178491420), (120, 169566849), (135, 150726088), (152, 133868565), (171, 118994280), (180, 113044566), (190, 107094852), (216, 94203805), (228, 89245710), (270, 75363044), (285, 71396568), (342, 59497140), (360, 56522283), (380, 53547426), (456, 44622855), (513, 39664760), (540, 37681522), (570, 35698284), (684, 29748570), (760, 26773713), (855, 23798856), (1026, 19832380), (1080, 18840761), (1140, 17849142), (1368, 14874285), (1710, 11899428), (2052, 9916190), (2280, 8924571), (2565, 7932952), (3420, 5949714), (4104, 4958095), (5130, 3966476), (6840, 2974857), (10260, 1983238), (20520, 991619)]