20598400

素因数分解:

$2^7\times 5^2\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:222

約数の個数: 96

約数和(自身を含む): 52457580

約数和(自身を除く): 31859180

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 41, 50, 64, 80, 82, 100, 128, 157, 160, 164, 200, 205, 314, 320, 328, 400, 410, 628, 640, 656, 785, 800, 820, 1025, 1256, 1312, 1570, 1600, 1640, 2050, 2512, 2624, 3140, 3200, 3280, 3925, 4100, 5024, 5248, 6280, 6437, 6560, 7850, 8200, 10048, 12560, 12874, 13120, 15700, 16400, 20096, 25120, 25748, 26240, 31400, 32185, 32800, 50240, 51496, 62800, 64370, 65600, 100480, 102992, 125600, 128740, 131200, 160925, 205984, 251200, 257480, 321850, 411968, 502400, 514960, 643700, 823936, 1029920, 1287400, 2059840, 2574800, 4119680, 5149600, 10299200, 20598400]

約数ペア:

[(1, 20598400), (2, 10299200), (4, 5149600), (5, 4119680), (8, 2574800), (10, 2059840), (16, 1287400), (20, 1029920), (25, 823936), (32, 643700), (40, 514960), (41, 502400), (50, 411968), (64, 321850), (80, 257480), (82, 251200), (100, 205984), (128, 160925), (157, 131200), (160, 128740), (164, 125600), (200, 102992), (205, 100480), (314, 65600), (320, 64370), (328, 62800), (400, 51496), (410, 50240), (628, 32800), (640, 32185), (656, 31400), (785, 26240), (800, 25748), (820, 25120), (1025, 20096), (1256, 16400), (1312, 15700), (1570, 13120), (1600, 12874), (1640, 12560), (2050, 10048), (2512, 8200), (2624, 7850), (3140, 6560), (3200, 6437), (3280, 6280), (3925, 5248), (4100, 5024)]