81843720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{449}}^1$

素因数の和:508

約数の個数: 192

約数和(自身を含む): 295488000

約数和(自身を除く): 213644280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 49, 56, 60, 62, 70, 84, 93, 98, 105, 120, 124, 140, 147, 155, 168, 186, 196, 210, 217, 245, 248, 280, 294, 310, 372, 392, 420, 434, 449, 465, 490, 588, 620, 651, 735, 744, 840, 868, 898, 930, 980, 1085, 1176, 1240, 1302, 1347, 1470, 1519, 1736, 1796, 1860, 1960, 2170, 2245, 2604, 2694, 2940, 3038, 3143, 3255, 3592, 3720, 4340, 4490, 4557, 5208, 5388, 5880, 6076, 6286, 6510, 6735, 7595, 8680, 8980, 9114, 9429, 10776, 12152, 12572, 13020, 13470, 13919, 15190, 15715, 17960, 18228, 18858, 22001, 22785, 25144, 26040, 26940, 27838, 30380, 31430, 36456, 37716, 41757, 44002, 45570, 47145, 53880, 55676, 60760, 62860, 66003, 69595, 75432, 83514, 88004, 91140, 94290, 97433, 110005, 111352, 125720, 132006, 139190, 167028, 176008, 182280, 188580, 194866, 208785, 220010, 264012, 278380, 292299, 330015, 334056, 377160, 389732, 417570, 440020, 487165, 528024, 556760, 584598, 660030, 682031, 779464, 835140, 880040, 974330, 1169196, 1320060, 1364062, 1461495, 1670280, 1948660, 2046093, 2338392, 2640120, 2728124, 2922990, 3410155, 3897320, 4092186, 5456248, 5845980, 6820310, 8184372, 10230465, 11691960, 13640620, 16368744, 20460930, 27281240, 40921860, 81843720]

約数ペア:

[(1, 81843720), (2, 40921860), (3, 27281240), (4, 20460930), (5, 16368744), (6, 13640620), (7, 11691960), (8, 10230465), (10, 8184372), (12, 6820310), (14, 5845980), (15, 5456248), (20, 4092186), (21, 3897320), (24, 3410155), (28, 2922990), (30, 2728124), (31, 2640120), (35, 2338392), (40, 2046093), (42, 1948660), (49, 1670280), (56, 1461495), (60, 1364062), (62, 1320060), (70, 1169196), (84, 974330), (93, 880040), (98, 835140), (105, 779464), (120, 682031), (124, 660030), (140, 584598), (147, 556760), (155, 528024), (168, 487165), (186, 440020), (196, 417570), (210, 389732), (217, 377160), (245, 334056), (248, 330015), (280, 292299), (294, 278380), (310, 264012), (372, 220010), (392, 208785), (420, 194866), (434, 188580), (449, 182280), (465, 176008), (490, 167028), (588, 139190), (620, 132006), (651, 125720), (735, 111352), (744, 110005), (840, 97433), (868, 94290), (898, 91140), (930, 88004), (980, 83514), (1085, 75432), (1176, 69595), (1240, 66003), (1302, 62860), (1347, 60760), (1470, 55676), (1519, 53880), (1736, 47145), (1796, 45570), (1860, 44002), (1960, 41757), (2170, 37716), (2245, 36456), (2604, 31430), (2694, 30380), (2940, 27838), (3038, 26940), (3143, 26040), (3255, 25144), (3592, 22785), (3720, 22001), (4340, 18858), (4490, 18228), (4557, 17960), (5208, 15715), (5388, 15190), (5880, 13919), (6076, 13470), (6286, 13020), (6510, 12572), (6735, 12152), (7595, 10776), (8680, 9429), (8980, 9114)]