20199721232

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{479}}^1\times {\mathrm{787}}^1$

素因数の和:1488

約数の個数: 80

約数和(自身を含む): 41789468160

約数和(自身を除く): 21589746928

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 197, 272, 394, 479, 787, 788, 958, 1574, 1576, 1916, 3148, 3152, 3349, 3832, 6296, 6698, 7664, 8143, 12592, 13379, 13396, 16286, 26758, 26792, 32572, 53516, 53584, 65144, 94363, 107032, 130288, 155039, 188726, 214064, 310078, 376973, 377452, 620156, 753946, 754904, 1240312, 1507892, 1509808, 1604171, 2480624, 2635663, 3015784, 3208342, 5271326, 6031568, 6408541, 6416684, 10542652, 12817082, 12833368, 21085304, 25634164, 25666736, 42170608, 51268328, 74263681, 102536656, 148527362, 297054724, 594109448, 1188218896, 1262482577, 2524965154, 5049930308, 10099860616, 20199721232]

約数ペア:

[(1, 20199721232), (2, 10099860616), (4, 5049930308), (8, 2524965154), (16, 1262482577), (17, 1188218896), (34, 594109448), (68, 297054724), (136, 148527362), (197, 102536656), (272, 74263681), (394, 51268328), (479, 42170608), (787, 25666736), (788, 25634164), (958, 21085304), (1574, 12833368), (1576, 12817082), (1916, 10542652), (3148, 6416684), (3152, 6408541), (3349, 6031568), (3832, 5271326), (6296, 3208342), (6698, 3015784), (7664, 2635663), (8143, 2480624), (12592, 1604171), (13379, 1509808), (13396, 1507892), (16286, 1240312), (26758, 754904), (26792, 753946), (32572, 620156), (53516, 377452), (53584, 376973), (65144, 310078), (94363, 214064), (107032, 188726), (130288, 155039)]