12710440

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1613}}^1$

素因数の和:1821

約数の個数: 32

約数和(自身を含む): 28761480

約数和(自身を除く): 16051040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1613, 1970, 3226, 3940, 6452, 7880, 8065, 12904, 16130, 32260, 64520, 317761, 635522, 1271044, 1588805, 2542088, 3177610, 6355220, 12710440]

約数ペア:

[(1, 12710440), (2, 6355220), (4, 3177610), (5, 2542088), (8, 1588805), (10, 1271044), (20, 635522), (40, 317761), (197, 64520), (394, 32260), (788, 16130), (985, 12904), (1576, 8065), (1613, 7880), (1970, 6452), (3226, 3940)]