40485760

素因数分解:

$2^7\times 5^1\times 7^2\times {\mathrm{1291}}^1$

素因数の和:1324

約数の個数: 96

約数和(自身を含む): 112675320

約数和(自身を除く): 72189560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 280, 320, 392, 448, 490, 560, 640, 784, 896, 980, 1120, 1291, 1568, 1960, 2240, 2582, 3136, 3920, 4480, 5164, 6272, 6455, 7840, 9037, 10328, 12910, 15680, 18074, 20656, 25820, 31360, 36148, 41312, 45185, 51640, 63259, 72296, 82624, 90370, 103280, 126518, 144592, 165248, 180740, 206560, 253036, 289184, 316295, 361480, 413120, 506072, 578368, 632590, 722960, 826240, 1012144, 1156736, 1265180, 1445920, 2024288, 2530360, 2891840, 4048576, 5060720, 5783680, 8097152, 10121440, 20242880, 40485760]

約数ペア:

[(1, 40485760), (2, 20242880), (4, 10121440), (5, 8097152), (7, 5783680), (8, 5060720), (10, 4048576), (14, 2891840), (16, 2530360), (20, 2024288), (28, 1445920), (32, 1265180), (35, 1156736), (40, 1012144), (49, 826240), (56, 722960), (64, 632590), (70, 578368), (80, 506072), (98, 413120), (112, 361480), (128, 316295), (140, 289184), (160, 253036), (196, 206560), (224, 180740), (245, 165248), (280, 144592), (320, 126518), (392, 103280), (448, 90370), (490, 82624), (560, 72296), (640, 63259), (784, 51640), (896, 45185), (980, 41312), (1120, 36148), (1291, 31360), (1568, 25820), (1960, 20656), (2240, 18074), (2582, 15680), (3136, 12910), (3920, 10328), (4480, 9037), (5164, 7840), (6272, 6455)]