81291200

素因数分解:

$2^6\times 5^2\times {\mathrm{23}}^1\times {\mathrm{47}}^2$

素因数の和:139

約数の個数: 126

約数和(自身を含む): 213259416

約数和(自身を除く): 131968216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 47, 50, 64, 80, 92, 94, 100, 115, 160, 184, 188, 200, 230, 235, 320, 368, 376, 400, 460, 470, 575, 736, 752, 800, 920, 940, 1081, 1150, 1175, 1472, 1504, 1600, 1840, 1880, 2162, 2209, 2300, 2350, 3008, 3680, 3760, 4324, 4418, 4600, 4700, 5405, 7360, 7520, 8648, 8836, 9200, 9400, 10810, 11045, 15040, 17296, 17672, 18400, 18800, 21620, 22090, 27025, 34592, 35344, 36800, 37600, 43240, 44180, 50807, 54050, 55225, 69184, 70688, 75200, 86480, 88360, 101614, 108100, 110450, 141376, 172960, 176720, 203228, 216200, 220900, 254035, 345920, 353440, 406456, 432400, 441800, 508070, 706880, 812912, 864800, 883600, 1016140, 1270175, 1625824, 1729600, 1767200, 2032280, 2540350, 3251648, 3534400, 4064560, 5080700, 8129120, 10161400, 16258240, 20322800, 40645600, 81291200]

約数ペア:

[(1, 81291200), (2, 40645600), (4, 20322800), (5, 16258240), (8, 10161400), (10, 8129120), (16, 5080700), (20, 4064560), (23, 3534400), (25, 3251648), (32, 2540350), (40, 2032280), (46, 1767200), (47, 1729600), (50, 1625824), (64, 1270175), (80, 1016140), (92, 883600), (94, 864800), (100, 812912), (115, 706880), (160, 508070), (184, 441800), (188, 432400), (200, 406456), (230, 353440), (235, 345920), (320, 254035), (368, 220900), (376, 216200), (400, 203228), (460, 176720), (470, 172960), (575, 141376), (736, 110450), (752, 108100), (800, 101614), (920, 88360), (940, 86480), (1081, 75200), (1150, 70688), (1175, 69184), (1472, 55225), (1504, 54050), (1600, 50807), (1840, 44180), (1880, 43240), (2162, 37600), (2209, 36800), (2300, 35344), (2350, 34592), (3008, 27025), (3680, 22090), (3760, 21620), (4324, 18800), (4418, 18400), (4600, 17672), (4700, 17296), (5405, 15040), (7360, 11045), (7520, 10810), (8648, 9400), (8836, 9200)]