199712760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{128021}}^1$

素因数の和:128048

約数の個数: 64

約数和(自身を含む): 645230880

約数和(自身を除く): 445518120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 128021, 256042, 384063, 512084, 640105, 768126, 1024168, 1280210, 1536252, 1664273, 1920315, 2560420, 3072504, 3328546, 3840630, 4992819, 5120840, 6657092, 7681260, 8321365, 9985638, 13314184, 15362520, 16642730, 19971276, 24964095, 33285460, 39942552, 49928190, 66570920, 99856380, 199712760]

約数ペア:

[(1, 199712760), (2, 99856380), (3, 66570920), (4, 49928190), (5, 39942552), (6, 33285460), (8, 24964095), (10, 19971276), (12, 16642730), (13, 15362520), (15, 13314184), (20, 9985638), (24, 8321365), (26, 7681260), (30, 6657092), (39, 5120840), (40, 4992819), (52, 3840630), (60, 3328546), (65, 3072504), (78, 2560420), (104, 1920315), (120, 1664273), (130, 1536252), (156, 1280210), (195, 1024168), (260, 768126), (312, 640105), (390, 512084), (520, 384063), (780, 256042), (1560, 128021)]