19686800

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:193

約数の個数: 120

約数和(自身を含む): 55353600

約数和(自身を除く): 35666800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 79, 80, 89, 100, 112, 140, 158, 175, 178, 200, 280, 316, 350, 356, 395, 400, 445, 553, 560, 623, 632, 700, 712, 790, 890, 1106, 1246, 1264, 1400, 1424, 1580, 1780, 1975, 2212, 2225, 2492, 2765, 2800, 3115, 3160, 3560, 3950, 4424, 4450, 4984, 5530, 6230, 6320, 7031, 7120, 7900, 8848, 8900, 9968, 11060, 12460, 13825, 14062, 15575, 15800, 17800, 22120, 24920, 27650, 28124, 31150, 31600, 35155, 35600, 44240, 49217, 49840, 55300, 56248, 62300, 70310, 98434, 110600, 112496, 124600, 140620, 175775, 196868, 221200, 246085, 249200, 281240, 351550, 393736, 492170, 562480, 703100, 787472, 984340, 1230425, 1406200, 1968680, 2460850, 2812400, 3937360, 4921700, 9843400, 19686800]

約数ペア:

[(1, 19686800), (2, 9843400), (4, 4921700), (5, 3937360), (7, 2812400), (8, 2460850), (10, 1968680), (14, 1406200), (16, 1230425), (20, 984340), (25, 787472), (28, 703100), (35, 562480), (40, 492170), (50, 393736), (56, 351550), (70, 281240), (79, 249200), (80, 246085), (89, 221200), (100, 196868), (112, 175775), (140, 140620), (158, 124600), (175, 112496), (178, 110600), (200, 98434), (280, 70310), (316, 62300), (350, 56248), (356, 55300), (395, 49840), (400, 49217), (445, 44240), (553, 35600), (560, 35155), (623, 31600), (632, 31150), (700, 28124), (712, 27650), (790, 24920), (890, 22120), (1106, 17800), (1246, 15800), (1264, 15575), (1400, 14062), (1424, 13825), (1580, 12460), (1780, 11060), (1975, 9968), (2212, 8900), (2225, 8848), (2492, 7900), (2765, 7120), (2800, 7031), (3115, 6320), (3160, 6230), (3560, 5530), (3950, 4984), (4424, 4450)]