2011023880

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{439}}^1\times {\mathrm{1613}}^1$

素因数の和:2134

約数の個数: 64

約数和(自身を含む): 4601836800

約数和(自身を除く): 2590812920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 439, 568, 710, 878, 1420, 1613, 1756, 2195, 2840, 3226, 3512, 4390, 6452, 8065, 8780, 12904, 16130, 17560, 31169, 32260, 62338, 64520, 114523, 124676, 155845, 229046, 249352, 311690, 458092, 572615, 623380, 708107, 916184, 1145230, 1246760, 1416214, 2290460, 2832428, 3540535, 4580920, 5664856, 7081070, 14162140, 28324280, 50275597, 100551194, 201102388, 251377985, 402204776, 502755970, 1005511940, 2011023880]

約数ペア:

[(1, 2011023880), (2, 1005511940), (4, 502755970), (5, 402204776), (8, 251377985), (10, 201102388), (20, 100551194), (40, 50275597), (71, 28324280), (142, 14162140), (284, 7081070), (355, 5664856), (439, 4580920), (568, 3540535), (710, 2832428), (878, 2290460), (1420, 1416214), (1613, 1246760), (1756, 1145230), (2195, 916184), (2840, 708107), (3226, 623380), (3512, 572615), (4390, 458092), (6452, 311690), (8065, 249352), (8780, 229046), (12904, 155845), (16130, 124676), (17560, 114523), (31169, 64520), (32260, 62338)]