21433600

素因数分解:

$2^8\times 5^2\times {\mathrm{17}}^1\times {\mathrm{197}}^1$

素因数の和:240

約数の個数: 108

約数和(自身を含む): 56457324

約数和(自身を除く): 35023724

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 64, 68, 80, 85, 100, 128, 136, 160, 170, 197, 200, 256, 272, 320, 340, 394, 400, 425, 544, 640, 680, 788, 800, 850, 985, 1088, 1280, 1360, 1576, 1600, 1700, 1970, 2176, 2720, 3152, 3200, 3349, 3400, 3940, 4352, 4925, 5440, 6304, 6400, 6698, 6800, 7880, 9850, 10880, 12608, 13396, 13600, 15760, 16745, 19700, 21760, 25216, 26792, 27200, 31520, 33490, 39400, 50432, 53584, 54400, 63040, 66980, 78800, 83725, 107168, 108800, 126080, 133960, 157600, 167450, 214336, 252160, 267920, 315200, 334900, 428672, 535840, 630400, 669800, 857344, 1071680, 1260800, 1339600, 2143360, 2679200, 4286720, 5358400, 10716800, 21433600]

約数ペア:

[(1, 21433600), (2, 10716800), (4, 5358400), (5, 4286720), (8, 2679200), (10, 2143360), (16, 1339600), (17, 1260800), (20, 1071680), (25, 857344), (32, 669800), (34, 630400), (40, 535840), (50, 428672), (64, 334900), (68, 315200), (80, 267920), (85, 252160), (100, 214336), (128, 167450), (136, 157600), (160, 133960), (170, 126080), (197, 108800), (200, 107168), (256, 83725), (272, 78800), (320, 66980), (340, 63040), (394, 54400), (400, 53584), (425, 50432), (544, 39400), (640, 33490), (680, 31520), (788, 27200), (800, 26792), (850, 25216), (985, 21760), (1088, 19700), (1280, 16745), (1360, 15760), (1576, 13600), (1600, 13396), (1700, 12608), (1970, 10880), (2176, 9850), (2720, 7880), (3152, 6800), (3200, 6698), (3349, 6400), (3400, 6304), (3940, 5440), (4352, 4925)]