81455700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:226

約数の個数: 144

約数和(自身を含む): 247484160

約数和(自身を除く): 166028460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 47, 50, 53, 60, 75, 94, 100, 106, 109, 141, 150, 159, 188, 212, 218, 235, 265, 282, 300, 318, 327, 436, 470, 530, 545, 564, 636, 654, 705, 795, 940, 1060, 1090, 1175, 1308, 1325, 1410, 1590, 1635, 2180, 2350, 2491, 2650, 2725, 2820, 3180, 3270, 3525, 3975, 4700, 4982, 5123, 5300, 5450, 5777, 6540, 7050, 7473, 7950, 8175, 9964, 10246, 10900, 11554, 12455, 14100, 14946, 15369, 15900, 16350, 17331, 20492, 23108, 24910, 25615, 28885, 29892, 30738, 32700, 34662, 37365, 49820, 51230, 57770, 61476, 62275, 69324, 74730, 76845, 86655, 102460, 115540, 124550, 128075, 144425, 149460, 153690, 173310, 186825, 249100, 256150, 271519, 288850, 307380, 346620, 373650, 384225, 433275, 512300, 543038, 577700, 747300, 768450, 814557, 866550, 1086076, 1357595, 1536900, 1629114, 1733100, 2715190, 3258228, 4072785, 5430380, 6787975, 8145570, 13575950, 16291140, 20363925, 27151900, 40727850, 81455700]

約数ペア:

[(1, 81455700), (2, 40727850), (3, 27151900), (4, 20363925), (5, 16291140), (6, 13575950), (10, 8145570), (12, 6787975), (15, 5430380), (20, 4072785), (25, 3258228), (30, 2715190), (47, 1733100), (50, 1629114), (53, 1536900), (60, 1357595), (75, 1086076), (94, 866550), (100, 814557), (106, 768450), (109, 747300), (141, 577700), (150, 543038), (159, 512300), (188, 433275), (212, 384225), (218, 373650), (235, 346620), (265, 307380), (282, 288850), (300, 271519), (318, 256150), (327, 249100), (436, 186825), (470, 173310), (530, 153690), (545, 149460), (564, 144425), (636, 128075), (654, 124550), (705, 115540), (795, 102460), (940, 86655), (1060, 76845), (1090, 74730), (1175, 69324), (1308, 62275), (1325, 61476), (1410, 57770), (1590, 51230), (1635, 49820), (2180, 37365), (2350, 34662), (2491, 32700), (2650, 30738), (2725, 29892), (2820, 28885), (3180, 25615), (3270, 24910), (3525, 23108), (3975, 20492), (4700, 17331), (4982, 16350), (5123, 15900), (5300, 15369), (5450, 14946), (5777, 14100), (6540, 12455), (7050, 11554), (7473, 10900), (7950, 10246), (8175, 9964)]