19676280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12613}}^1$

素因数の和:12640

約数の個数: 64

約数和(自身を含む): 63574560

約数和(自身を除く): 43898280

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, 12613, 25226, 37839, 50452, 63065, 75678, 100904, 126130, 151356, 163969, 189195, 252260, 302712, 327938, 378390, 491907, 504520, 655876, 756780, 819845, 983814, 1311752, 1513560, 1639690, 1967628, 2459535, 3279380, 3935256, 4919070, 6558760, 9838140, 19676280]

約数ペア:

[(1, 19676280), (2, 9838140), (3, 6558760), (4, 4919070), (5, 3935256), (6, 3279380), (8, 2459535), (10, 1967628), (12, 1639690), (13, 1513560), (15, 1311752), (20, 983814), (24, 819845), (26, 756780), (30, 655876), (39, 504520), (40, 491907), (52, 378390), (60, 327938), (65, 302712), (78, 252260), (104, 189195), (120, 163969), (130, 151356), (156, 126130), (195, 100904), (260, 75678), (312, 63065), (390, 50452), (520, 37839), (780, 25226), (1560, 12613)]