20781300

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{1307}}^1$

素因数の和:1377

約数の個数: 72

約数和(自身を含む): 61308576

約数和(自身を除く): 40527276

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 53, 60, 75, 100, 106, 150, 159, 212, 265, 300, 318, 530, 636, 795, 1060, 1307, 1325, 1590, 2614, 2650, 3180, 3921, 3975, 5228, 5300, 6535, 7842, 7950, 13070, 15684, 15900, 19605, 26140, 32675, 39210, 65350, 69271, 78420, 98025, 130700, 138542, 196050, 207813, 277084, 346355, 392100, 415626, 692710, 831252, 1039065, 1385420, 1731775, 2078130, 3463550, 4156260, 5195325, 6927100, 10390650, 20781300]

約数ペア:

[(1, 20781300), (2, 10390650), (3, 6927100), (4, 5195325), (5, 4156260), (6, 3463550), (10, 2078130), (12, 1731775), (15, 1385420), (20, 1039065), (25, 831252), (30, 692710), (50, 415626), (53, 392100), (60, 346355), (75, 277084), (100, 207813), (106, 196050), (150, 138542), (159, 130700), (212, 98025), (265, 78420), (300, 69271), (318, 65350), (530, 39210), (636, 32675), (795, 26140), (1060, 19605), (1307, 15900), (1325, 15684), (1590, 13070), (2614, 7950), (2650, 7842), (3180, 6535), (3921, 5300), (3975, 5228)]