20931355250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1103}}^1\times {\mathrm{5839}}^1$

素因数の和:6972

約数の個数: 64

約数和(自身を含む): 42243102720

約数和(自身を除く): 21311747470

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 650, 1103, 1625, 2206, 3250, 5515, 5839, 11030, 11678, 14339, 27575, 28678, 29195, 55150, 58390, 71695, 75907, 137875, 143390, 145975, 151814, 275750, 291950, 358475, 379535, 716950, 729875, 759070, 1459750, 1792375, 1897675, 3584750, 3795350, 6440417, 9488375, 12880834, 18976750, 32202085, 64404170, 83725421, 161010425, 167450842, 322020850, 418627105, 805052125, 837254210, 1610104250, 2093135525, 4186271050, 10465677625, 20931355250]

約数ペア:

[(1, 20931355250), (2, 10465677625), (5, 4186271050), (10, 2093135525), (13, 1610104250), (25, 837254210), (26, 805052125), (50, 418627105), (65, 322020850), (125, 167450842), (130, 161010425), (250, 83725421), (325, 64404170), (650, 32202085), (1103, 18976750), (1625, 12880834), (2206, 9488375), (3250, 6440417), (5515, 3795350), (5839, 3584750), (11030, 1897675), (11678, 1792375), (14339, 1459750), (27575, 759070), (28678, 729875), (29195, 716950), (55150, 379535), (58390, 358475), (71695, 291950), (75907, 275750), (137875, 151814), (143390, 145975)]