20539400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{863}}^1$

素因数の和:903

約数の個数: 96

約数和(自身を含む): 57853440

約数和(自身を除く): 37314040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 25, 28, 34, 35, 40, 50, 56, 68, 70, 85, 100, 119, 136, 140, 170, 175, 200, 238, 280, 340, 350, 425, 476, 595, 680, 700, 850, 863, 952, 1190, 1400, 1700, 1726, 2380, 2975, 3400, 3452, 4315, 4760, 5950, 6041, 6904, 8630, 11900, 12082, 14671, 17260, 21575, 23800, 24164, 29342, 30205, 34520, 43150, 48328, 58684, 60410, 73355, 86300, 102697, 117368, 120820, 146710, 151025, 172600, 205394, 241640, 293420, 302050, 366775, 410788, 513485, 586840, 604100, 733550, 821576, 1026970, 1208200, 1467100, 2053940, 2567425, 2934200, 4107880, 5134850, 10269700, 20539400]

約数ペア:

[(1, 20539400), (2, 10269700), (4, 5134850), (5, 4107880), (7, 2934200), (8, 2567425), (10, 2053940), (14, 1467100), (17, 1208200), (20, 1026970), (25, 821576), (28, 733550), (34, 604100), (35, 586840), (40, 513485), (50, 410788), (56, 366775), (68, 302050), (70, 293420), (85, 241640), (100, 205394), (119, 172600), (136, 151025), (140, 146710), (170, 120820), (175, 117368), (200, 102697), (238, 86300), (280, 73355), (340, 60410), (350, 58684), (425, 48328), (476, 43150), (595, 34520), (680, 30205), (700, 29342), (850, 24164), (863, 23800), (952, 21575), (1190, 17260), (1400, 14671), (1700, 12082), (1726, 11900), (2380, 8630), (2975, 6904), (3400, 6041), (3452, 5950), (4315, 4760)]