77801920

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{739}}^1$

素因数の和:810

約数の個数: 112

約数和(自身を含む): 216529920

約数和(自身を除く): 138728000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 47, 56, 64, 70, 80, 94, 112, 140, 160, 188, 224, 235, 280, 320, 329, 376, 448, 470, 560, 658, 739, 752, 940, 1120, 1316, 1478, 1504, 1645, 1880, 2240, 2632, 2956, 3008, 3290, 3695, 3760, 5173, 5264, 5912, 6580, 7390, 7520, 10346, 10528, 11824, 13160, 14780, 15040, 20692, 21056, 23648, 25865, 26320, 29560, 34733, 41384, 47296, 51730, 52640, 59120, 69466, 82768, 103460, 105280, 118240, 138932, 165536, 173665, 206920, 236480, 243131, 277864, 331072, 347330, 413840, 486262, 555728, 694660, 827680, 972524, 1111456, 1215655, 1389320, 1655360, 1945048, 2222912, 2431310, 2778640, 3890096, 4862620, 5557280, 7780192, 9725240, 11114560, 15560384, 19450480, 38900960, 77801920]

約数ペア:

[(1, 77801920), (2, 38900960), (4, 19450480), (5, 15560384), (7, 11114560), (8, 9725240), (10, 7780192), (14, 5557280), (16, 4862620), (20, 3890096), (28, 2778640), (32, 2431310), (35, 2222912), (40, 1945048), (47, 1655360), (56, 1389320), (64, 1215655), (70, 1111456), (80, 972524), (94, 827680), (112, 694660), (140, 555728), (160, 486262), (188, 413840), (224, 347330), (235, 331072), (280, 277864), (320, 243131), (329, 236480), (376, 206920), (448, 173665), (470, 165536), (560, 138932), (658, 118240), (739, 105280), (752, 103460), (940, 82768), (1120, 69466), (1316, 59120), (1478, 52640), (1504, 51730), (1645, 47296), (1880, 41384), (2240, 34733), (2632, 29560), (2956, 26320), (3008, 25865), (3290, 23648), (3695, 21056), (3760, 20692), (5173, 15040), (5264, 14780), (5912, 13160), (6580, 11824), (7390, 10528), (7520, 10346)]