21164200

素因数分解:

$2^3\times 5^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:175

約数の個数: 96

約数和(自身を含む): 52731000

約数和(自身を除く): 31566800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 29, 40, 41, 50, 58, 82, 89, 100, 116, 145, 164, 178, 200, 205, 232, 290, 328, 356, 410, 445, 580, 712, 725, 820, 890, 1025, 1160, 1189, 1450, 1640, 1780, 2050, 2225, 2378, 2581, 2900, 3560, 3649, 4100, 4450, 4756, 5162, 5800, 5945, 7298, 8200, 8900, 9512, 10324, 11890, 12905, 14596, 17800, 18245, 20648, 23780, 25810, 29192, 29725, 36490, 47560, 51620, 59450, 64525, 72980, 91225, 103240, 105821, 118900, 129050, 145960, 182450, 211642, 237800, 258100, 364900, 423284, 516200, 529105, 729800, 846568, 1058210, 2116420, 2645525, 4232840, 5291050, 10582100, 21164200]

約数ペア:

[(1, 21164200), (2, 10582100), (4, 5291050), (5, 4232840), (8, 2645525), (10, 2116420), (20, 1058210), (25, 846568), (29, 729800), (40, 529105), (41, 516200), (50, 423284), (58, 364900), (82, 258100), (89, 237800), (100, 211642), (116, 182450), (145, 145960), (164, 129050), (178, 118900), (200, 105821), (205, 103240), (232, 91225), (290, 72980), (328, 64525), (356, 59450), (410, 51620), (445, 47560), (580, 36490), (712, 29725), (725, 29192), (820, 25810), (890, 23780), (1025, 20648), (1160, 18245), (1189, 17800), (1450, 14596), (1640, 12905), (1780, 11890), (2050, 10324), (2225, 9512), (2378, 8900), (2581, 8200), (2900, 7298), (3560, 5945), (3649, 5800), (4100, 5162), (4450, 4756)]