1281150720

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{111211}}^1$

素因数の和:111238

約数の個数: 108

約数和(自身を含む): 4432687896

約数和(自身を除く): 3151537176

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 576, 640, 720, 768, 960, 1152, 1280, 1440, 1920, 2304, 2880, 3840, 5760, 11520, 111211, 222422, 333633, 444844, 556055, 667266, 889688, 1000899, 1112110, 1334532, 1668165, 1779376, 2001798, 2224220, 2669064, 3336330, 3558752, 4003596, 4448440, 5004495, 5338128, 6672660, 7117504, 8007192, 8896880, 10008990, 10676256, 13345320, 14235008, 16014384, 17793760, 20017980, 21352512, 26690640, 28470016, 32028768, 35587520, 40035960, 42705024, 53381280, 64057536, 71175040, 80071920, 85410048, 106762560, 128115072, 142350080, 160143840, 213525120, 256230144, 320287680, 427050240, 640575360, 1281150720]

約数ペア:

[(1, 1281150720), (2, 640575360), (3, 427050240), (4, 320287680), (5, 256230144), (6, 213525120), (8, 160143840), (9, 142350080), (10, 128115072), (12, 106762560), (15, 85410048), (16, 80071920), (18, 71175040), (20, 64057536), (24, 53381280), (30, 42705024), (32, 40035960), (36, 35587520), (40, 32028768), (45, 28470016), (48, 26690640), (60, 21352512), (64, 20017980), (72, 17793760), (80, 16014384), (90, 14235008), (96, 13345320), (120, 10676256), (128, 10008990), (144, 8896880), (160, 8007192), (180, 7117504), (192, 6672660), (240, 5338128), (256, 5004495), (288, 4448440), (320, 4003596), (360, 3558752), (384, 3336330), (480, 2669064), (576, 2224220), (640, 2001798), (720, 1779376), (768, 1668165), (960, 1334532), (1152, 1112110), (1280, 1000899), (1440, 889688), (1920, 667266), (2304, 556055), (2880, 444844), (3840, 333633), (5760, 222422), (11520, 111211)]