217748650

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:165

約数の個数: 144

約数和(自身を含む): 504824832

約数和(自身を除く): 287076182

約数列:

[1, 2, 5, 7, 10, 14, 25, 31, 35, 47, 49, 50, 61, 62, 70, 94, 98, 122, 155, 175, 217, 235, 245, 305, 310, 329, 350, 427, 434, 470, 490, 610, 658, 775, 854, 1085, 1175, 1225, 1457, 1519, 1525, 1550, 1645, 1891, 2135, 2170, 2303, 2350, 2450, 2867, 2914, 2989, 3038, 3050, 3290, 3782, 4270, 4606, 5425, 5734, 5978, 7285, 7595, 8225, 9455, 10199, 10675, 10850, 11515, 13237, 14335, 14570, 14945, 15190, 16450, 18910, 20069, 20398, 21350, 23030, 26474, 28670, 29890, 36425, 37975, 40138, 47275, 50995, 57575, 66185, 71393, 71675, 72850, 74725, 75950, 88877, 92659, 94550, 100345, 101990, 115150, 132370, 140483, 142786, 143350, 149450, 177754, 185318, 200690, 254975, 280966, 330925, 356965, 444385, 463295, 501725, 509950, 622139, 661850, 702415, 713930, 888770, 926590, 1003450, 1244278, 1404830, 1784825, 2221925, 2316475, 3110695, 3512075, 3569650, 4354973, 4443850, 4632950, 6221390, 7024150, 8709946, 15553475, 21774865, 31106950, 43549730, 108874325, 217748650]

約数ペア:

[(1, 217748650), (2, 108874325), (5, 43549730), (7, 31106950), (10, 21774865), (14, 15553475), (25, 8709946), (31, 7024150), (35, 6221390), (47, 4632950), (49, 4443850), (50, 4354973), (61, 3569650), (62, 3512075), (70, 3110695), (94, 2316475), (98, 2221925), (122, 1784825), (155, 1404830), (175, 1244278), (217, 1003450), (235, 926590), (245, 888770), (305, 713930), (310, 702415), (329, 661850), (350, 622139), (427, 509950), (434, 501725), (470, 463295), (490, 444385), (610, 356965), (658, 330925), (775, 280966), (854, 254975), (1085, 200690), (1175, 185318), (1225, 177754), (1457, 149450), (1519, 143350), (1525, 142786), (1550, 140483), (1645, 132370), (1891, 115150), (2135, 101990), (2170, 100345), (2303, 94550), (2350, 92659), (2450, 88877), (2867, 75950), (2914, 74725), (2989, 72850), (3038, 71675), (3050, 71393), (3290, 66185), (3782, 57575), (4270, 50995), (4606, 47275), (5425, 40138), (5734, 37975), (5978, 36425), (7285, 29890), (7595, 28670), (8225, 26474), (9455, 23030), (10199, 21350), (10675, 20398), (10850, 20069), (11515, 18910), (13237, 16450), (14335, 15190), (14570, 14945)]