20785750

素因数分解:

$2^1\times 5^3\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:154

約数の個数: 64

約数和(自身を含む): 41783040

約数和(自身を除く): 20997290

約数列:

[1, 2, 5, 10, 25, 29, 47, 50, 58, 61, 94, 122, 125, 145, 235, 250, 290, 305, 470, 610, 725, 1175, 1363, 1450, 1525, 1769, 2350, 2726, 2867, 3050, 3538, 3625, 5734, 5875, 6815, 7250, 7625, 8845, 11750, 13630, 14335, 15250, 17690, 28670, 34075, 44225, 68150, 71675, 83143, 88450, 143350, 166286, 170375, 221125, 340750, 358375, 415715, 442250, 716750, 831430, 2078575, 4157150, 10392875, 20785750]

約数ペア:

[(1, 20785750), (2, 10392875), (5, 4157150), (10, 2078575), (25, 831430), (29, 716750), (47, 442250), (50, 415715), (58, 358375), (61, 340750), (94, 221125), (122, 170375), (125, 166286), (145, 143350), (235, 88450), (250, 83143), (290, 71675), (305, 68150), (470, 44225), (610, 34075), (725, 28670), (1175, 17690), (1363, 15250), (1450, 14335), (1525, 13630), (1769, 11750), (2350, 8845), (2726, 7625), (2867, 7250), (3050, 6815), (3538, 5875), (3625, 5734)]