26240000

素因数分解:

$2^{10}\times 5^4\times {\mathrm{41}}^1$

素因数の和:81

約数の個数: 110

約数和(自身を含む): 67145694

約数和(自身を除く): 40905694

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 41, 50, 64, 80, 82, 100, 125, 128, 160, 164, 200, 205, 250, 256, 320, 328, 400, 410, 500, 512, 625, 640, 656, 800, 820, 1000, 1024, 1025, 1250, 1280, 1312, 1600, 1640, 2000, 2050, 2500, 2560, 2624, 3200, 3280, 4000, 4100, 5000, 5120, 5125, 5248, 6400, 6560, 8000, 8200, 10000, 10250, 10496, 12800, 13120, 16000, 16400, 20000, 20500, 20992, 25600, 25625, 26240, 32000, 32800, 40000, 41000, 41984, 51250, 52480, 64000, 65600, 80000, 82000, 102500, 104960, 128000, 131200, 160000, 164000, 205000, 209920, 262400, 320000, 328000, 410000, 524800, 640000, 656000, 820000, 1049600, 1312000, 1640000, 2624000, 3280000, 5248000, 6560000, 13120000, 26240000]

約数ペア:

[(1, 26240000), (2, 13120000), (4, 6560000), (5, 5248000), (8, 3280000), (10, 2624000), (16, 1640000), (20, 1312000), (25, 1049600), (32, 820000), (40, 656000), (41, 640000), (50, 524800), (64, 410000), (80, 328000), (82, 320000), (100, 262400), (125, 209920), (128, 205000), (160, 164000), (164, 160000), (200, 131200), (205, 128000), (250, 104960), (256, 102500), (320, 82000), (328, 80000), (400, 65600), (410, 64000), (500, 52480), (512, 51250), (625, 41984), (640, 41000), (656, 40000), (800, 32800), (820, 32000), (1000, 26240), (1024, 25625), (1025, 25600), (1250, 20992), (1280, 20500), (1312, 20000), (1600, 16400), (1640, 16000), (2000, 13120), (2050, 12800), (2500, 10496), (2560, 10250), (2624, 10000), (3200, 8200), (3280, 8000), (4000, 6560), (4100, 6400), (5000, 5248), (5120, 5125)]