513520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{131}}^1$

素因数の和:158

約数の個数: 60

約数和(自身を含む): 1399464

約数和(自身を除く): 885944

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 131, 140, 196, 245, 262, 280, 392, 490, 524, 560, 655, 784, 917, 980, 1048, 1310, 1834, 1960, 2096, 2620, 3668, 3920, 4585, 5240, 6419, 7336, 9170, 10480, 12838, 14672, 18340, 25676, 32095, 36680, 51352, 64190, 73360, 102704, 128380, 256760, 513520]

約数ペア:

[(1, 513520), (2, 256760), (4, 128380), (5, 102704), (7, 73360), (8, 64190), (10, 51352), (14, 36680), (16, 32095), (20, 25676), (28, 18340), (35, 14672), (40, 12838), (49, 10480), (56, 9170), (70, 7336), (80, 6419), (98, 5240), (112, 4585), (131, 3920), (140, 3668), (196, 2620), (245, 2096), (262, 1960), (280, 1834), (392, 1310), (490, 1048), (524, 980), (560, 917), (655, 784)]