40691840

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{293}}^1$

素因数の和:350

約数の個数: 128

約数和(自身を含む): 115153920

約数和(自身を除く): 74462080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 140, 155, 160, 217, 224, 248, 280, 293, 310, 320, 434, 448, 496, 560, 586, 620, 640, 868, 896, 992, 1085, 1120, 1172, 1240, 1465, 1736, 1984, 2051, 2170, 2240, 2344, 2480, 2930, 3472, 3968, 4102, 4340, 4480, 4688, 4960, 5860, 6944, 8204, 8680, 9083, 9376, 9920, 10255, 11720, 13888, 16408, 17360, 18166, 18752, 19840, 20510, 23440, 27776, 32816, 34720, 36332, 37504, 41020, 45415, 46880, 63581, 65632, 69440, 72664, 82040, 90830, 93760, 127162, 131264, 138880, 145328, 164080, 181660, 187520, 254324, 262528, 290656, 317905, 328160, 363320, 508648, 581312, 635810, 656320, 726640, 1017296, 1162624, 1271620, 1312640, 1453280, 2034592, 2543240, 2906560, 4069184, 5086480, 5813120, 8138368, 10172960, 20345920, 40691840]

約数ペア:

[(1, 40691840), (2, 20345920), (4, 10172960), (5, 8138368), (7, 5813120), (8, 5086480), (10, 4069184), (14, 2906560), (16, 2543240), (20, 2034592), (28, 1453280), (31, 1312640), (32, 1271620), (35, 1162624), (40, 1017296), (56, 726640), (62, 656320), (64, 635810), (70, 581312), (80, 508648), (112, 363320), (124, 328160), (128, 317905), (140, 290656), (155, 262528), (160, 254324), (217, 187520), (224, 181660), (248, 164080), (280, 145328), (293, 138880), (310, 131264), (320, 127162), (434, 93760), (448, 90830), (496, 82040), (560, 72664), (586, 69440), (620, 65632), (640, 63581), (868, 46880), (896, 45415), (992, 41020), (1085, 37504), (1120, 36332), (1172, 34720), (1240, 32816), (1465, 27776), (1736, 23440), (1984, 20510), (2051, 19840), (2170, 18752), (2240, 18166), (2344, 17360), (2480, 16408), (2930, 13888), (3472, 11720), (3968, 10255), (4102, 9920), (4340, 9376), (4480, 9083), (4688, 8680), (4960, 8204), (5860, 6944)]