2078661620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{243403}}^1$

素因数の和:243480

約数の個数: 48

約数和(自身を含む): 5070592128

約数和(自身を除く): 2991930508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 2135, 4270, 8540, 243403, 486806, 973612, 1217015, 1703821, 2434030, 3407642, 4868060, 6815284, 8519105, 14847583, 17038210, 29695166, 34076420, 59390332, 74237915, 103933081, 148475830, 207866162, 296951660, 415732324, 519665405, 1039330810, 2078661620]

約数ペア:

[(1, 2078661620), (2, 1039330810), (4, 519665405), (5, 415732324), (7, 296951660), (10, 207866162), (14, 148475830), (20, 103933081), (28, 74237915), (35, 59390332), (61, 34076420), (70, 29695166), (122, 17038210), (140, 14847583), (244, 8519105), (305, 6815284), (427, 4868060), (610, 3407642), (854, 2434030), (1220, 1703821), (1708, 1217015), (2135, 973612), (4270, 486806), (8540, 243403)]