638694414

素因数分解:

$2^1\times 3^2\times {\mathrm{53}}^1\times {\mathrm{631}}^1\times {\mathrm{1061}}^1$

素因数の和:1753

約数の個数: 48

約数和(自身を含む): 1413513504

約数和(自身を除く): 774819090

約数列:

[1, 2, 3, 6, 9, 18, 53, 106, 159, 318, 477, 631, 954, 1061, 1262, 1893, 2122, 3183, 3786, 5679, 6366, 9549, 11358, 19098, 33443, 56233, 66886, 100329, 112466, 168699, 200658, 300987, 337398, 506097, 601974, 669491, 1012194, 1338982, 2008473, 4016946, 6025419, 12050838, 35483023, 70966046, 106449069, 212898138, 319347207, 638694414]

約数ペア:

[(1, 638694414), (2, 319347207), (3, 212898138), (6, 106449069), (9, 70966046), (18, 35483023), (53, 12050838), (106, 6025419), (159, 4016946), (318, 2008473), (477, 1338982), (631, 1012194), (954, 669491), (1061, 601974), (1262, 506097), (1893, 337398), (2122, 300987), (3183, 200658), (3786, 168699), (5679, 112466), (6366, 100329), (9549, 66886), (11358, 56233), (19098, 33443)]