2021105900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{691}}^1\times {\mathrm{2659}}^1$

素因数の和:3375

約数の個数: 72

約数和(自身を含む): 4793234880

約数和(自身を除く): 2772128980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 691, 1100, 1382, 2659, 2764, 3455, 5318, 6910, 7601, 10636, 13295, 13820, 15202, 17275, 26590, 29249, 30404, 34550, 38005, 53180, 58498, 66475, 69100, 76010, 116996, 132950, 146245, 152020, 190025, 265900, 292490, 380050, 584980, 731225, 760100, 1462450, 1837369, 2924900, 3674738, 7349476, 9186845, 18373690, 20211059, 36747380, 40422118, 45934225, 80844236, 91868450, 101055295, 183736900, 202110590, 404221180, 505276475, 1010552950, 2021105900]

約数ペア:

[(1, 2021105900), (2, 1010552950), (4, 505276475), (5, 404221180), (10, 202110590), (11, 183736900), (20, 101055295), (22, 91868450), (25, 80844236), (44, 45934225), (50, 40422118), (55, 36747380), (100, 20211059), (110, 18373690), (220, 9186845), (275, 7349476), (550, 3674738), (691, 2924900), (1100, 1837369), (1382, 1462450), (2659, 760100), (2764, 731225), (3455, 584980), (5318, 380050), (6910, 292490), (7601, 265900), (10636, 190025), (13295, 152020), (13820, 146245), (15202, 132950), (17275, 116996), (26590, 76010), (29249, 69100), (30404, 66475), (34550, 58498), (38005, 53180)]