20158800

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{107}}^1\times {\mathrm{157}}^1$

素因数の和:285

約数の個数: 120

約数和(自身を含む): 65594016

約数和(自身を除く): 45435216

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 48, 50, 60, 75, 80, 100, 107, 120, 150, 157, 200, 214, 240, 300, 314, 321, 400, 428, 471, 535, 600, 628, 642, 785, 856, 942, 1070, 1200, 1256, 1284, 1570, 1605, 1712, 1884, 2140, 2355, 2512, 2568, 2675, 3140, 3210, 3768, 3925, 4280, 4710, 5136, 5350, 6280, 6420, 7536, 7850, 8025, 8560, 9420, 10700, 11775, 12560, 12840, 15700, 16050, 16799, 18840, 21400, 23550, 25680, 31400, 32100, 33598, 37680, 42800, 47100, 50397, 62800, 64200, 67196, 83995, 94200, 100794, 128400, 134392, 167990, 188400, 201588, 251985, 268784, 335980, 403176, 419975, 503970, 671960, 806352, 839950, 1007940, 1259925, 1343920, 1679900, 2015880, 2519850, 3359800, 4031760, 5039700, 6719600, 10079400, 20158800]

約数ペア:

[(1, 20158800), (2, 10079400), (3, 6719600), (4, 5039700), (5, 4031760), (6, 3359800), (8, 2519850), (10, 2015880), (12, 1679900), (15, 1343920), (16, 1259925), (20, 1007940), (24, 839950), (25, 806352), (30, 671960), (40, 503970), (48, 419975), (50, 403176), (60, 335980), (75, 268784), (80, 251985), (100, 201588), (107, 188400), (120, 167990), (150, 134392), (157, 128400), (200, 100794), (214, 94200), (240, 83995), (300, 67196), (314, 64200), (321, 62800), (400, 50397), (428, 47100), (471, 42800), (535, 37680), (600, 33598), (628, 32100), (642, 31400), (785, 25680), (856, 23550), (942, 21400), (1070, 18840), (1200, 16799), (1256, 16050), (1284, 15700), (1570, 12840), (1605, 12560), (1712, 11775), (1884, 10700), (2140, 9420), (2355, 8560), (2512, 8025), (2568, 7850), (2675, 7536), (3140, 6420), (3210, 6280), (3768, 5350), (3925, 5136), (4280, 4710)]