20523900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{43}}^2$

素因数の和:140

約数の個数: 108

約数和(自身を含む): 62438712

約数和(自身を除く): 41914812

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 37, 43, 50, 60, 74, 75, 86, 100, 111, 129, 148, 150, 172, 185, 215, 222, 258, 300, 370, 430, 444, 516, 555, 645, 740, 860, 925, 1075, 1110, 1290, 1591, 1849, 1850, 2150, 2220, 2580, 2775, 3182, 3225, 3698, 3700, 4300, 4773, 5547, 5550, 6364, 6450, 7396, 7955, 9245, 9546, 11094, 11100, 12900, 15910, 18490, 19092, 22188, 23865, 27735, 31820, 36980, 39775, 46225, 47730, 55470, 68413, 79550, 92450, 95460, 110940, 119325, 136826, 138675, 159100, 184900, 205239, 238650, 273652, 277350, 342065, 410478, 477300, 554700, 684130, 820956, 1026195, 1368260, 1710325, 2052390, 3420650, 4104780, 5130975, 6841300, 10261950, 20523900]

約数ペア:

[(1, 20523900), (2, 10261950), (3, 6841300), (4, 5130975), (5, 4104780), (6, 3420650), (10, 2052390), (12, 1710325), (15, 1368260), (20, 1026195), (25, 820956), (30, 684130), (37, 554700), (43, 477300), (50, 410478), (60, 342065), (74, 277350), (75, 273652), (86, 238650), (100, 205239), (111, 184900), (129, 159100), (148, 138675), (150, 136826), (172, 119325), (185, 110940), (215, 95460), (222, 92450), (258, 79550), (300, 68413), (370, 55470), (430, 47730), (444, 46225), (516, 39775), (555, 36980), (645, 31820), (740, 27735), (860, 23865), (925, 22188), (1075, 19092), (1110, 18490), (1290, 15910), (1591, 12900), (1849, 11100), (1850, 11094), (2150, 9546), (2220, 9245), (2580, 7955), (2775, 7396), (3182, 6450), (3225, 6364), (3698, 5550), (3700, 5547), (4300, 4773)]