131200000

素因数分解:

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

素因数の和:86

約数の個数: 132

約数和(自身を含む): 335814444

約数和(自身を除く): 204614444

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, 3125, 3200, 3280, 4000, 4100, 5000, 5120, 5125, 5248, 6250, 6400, 6560, 8000, 8200, 10000, 10250, 10496, 12500, 12800, 13120, 16000, 16400, 20000, 20500, 20992, 25000, 25600, 25625, 26240, 32000, 32800, 40000, 41000, 41984, 50000, 51250, 52480, 64000, 65600, 80000, 82000, 100000, 102500, 104960, 128000, 128125, 131200, 160000, 164000, 200000, 205000, 209920, 256250, 262400, 320000, 328000, 400000, 410000, 512500, 524800, 640000, 656000, 800000, 820000, 1025000, 1049600, 1312000, 1600000, 1640000, 2050000, 2624000, 3200000, 3280000, 4100000, 5248000, 6560000, 8200000, 13120000, 16400000, 26240000, 32800000, 65600000, 131200000]

約数ペア:

[(1, 131200000), (2, 65600000), (4, 32800000), (5, 26240000), (8, 16400000), (10, 13120000), (16, 8200000), (20, 6560000), (25, 5248000), (32, 4100000), (40, 3280000), (41, 3200000), (50, 2624000), (64, 2050000), (80, 1640000), (82, 1600000), (100, 1312000), (125, 1049600), (128, 1025000), (160, 820000), (164, 800000), (200, 656000), (205, 640000), (250, 524800), (256, 512500), (320, 410000), (328, 400000), (400, 328000), (410, 320000), (500, 262400), (512, 256250), (625, 209920), (640, 205000), (656, 200000), (800, 164000), (820, 160000), (1000, 131200), (1024, 128125), (1025, 128000), (1250, 104960), (1280, 102500), (1312, 100000), (1600, 82000), (1640, 80000), (2000, 65600), (2050, 64000), (2500, 52480), (2560, 51250), (2624, 50000), (3125, 41984), (3200, 41000), (3280, 40000), (4000, 32800), (4100, 32000), (5000, 26240), (5120, 25625), (5125, 25600), (5248, 25000), (6250, 20992), (6400, 20500), (6560, 20000), (8000, 16400), (8200, 16000), (10000, 13120), (10250, 12800), (10496, 12500)]