20434400

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:157

約数の個数: 144

約数和(自身を含む): 59058720

約数和(自身を除く): 38624320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 41, 50, 56, 70, 80, 82, 89, 100, 112, 140, 160, 164, 175, 178, 200, 205, 224, 280, 287, 328, 350, 356, 400, 410, 445, 560, 574, 623, 656, 700, 712, 800, 820, 890, 1025, 1120, 1148, 1246, 1312, 1400, 1424, 1435, 1640, 1780, 2050, 2225, 2296, 2492, 2800, 2848, 2870, 3115, 3280, 3560, 3649, 4100, 4450, 4592, 4984, 5600, 5740, 6230, 6560, 7120, 7175, 7298, 8200, 8900, 9184, 9968, 11480, 12460, 14240, 14350, 14596, 15575, 16400, 17800, 18245, 19936, 22960, 24920, 25543, 28700, 29192, 31150, 32800, 35600, 36490, 45920, 49840, 51086, 57400, 58384, 62300, 71200, 72980, 91225, 99680, 102172, 114800, 116768, 124600, 127715, 145960, 182450, 204344, 229600, 249200, 255430, 291920, 364900, 408688, 498400, 510860, 583840, 638575, 729800, 817376, 1021720, 1277150, 1459600, 2043440, 2554300, 2919200, 4086880, 5108600, 10217200, 20434400]

約数ペア:

[(1, 20434400), (2, 10217200), (4, 5108600), (5, 4086880), (7, 2919200), (8, 2554300), (10, 2043440), (14, 1459600), (16, 1277150), (20, 1021720), (25, 817376), (28, 729800), (32, 638575), (35, 583840), (40, 510860), (41, 498400), (50, 408688), (56, 364900), (70, 291920), (80, 255430), (82, 249200), (89, 229600), (100, 204344), (112, 182450), (140, 145960), (160, 127715), (164, 124600), (175, 116768), (178, 114800), (200, 102172), (205, 99680), (224, 91225), (280, 72980), (287, 71200), (328, 62300), (350, 58384), (356, 57400), (400, 51086), (410, 49840), (445, 45920), (560, 36490), (574, 35600), (623, 32800), (656, 31150), (700, 29192), (712, 28700), (800, 25543), (820, 24920), (890, 22960), (1025, 19936), (1120, 18245), (1148, 17800), (1246, 16400), (1312, 15575), (1400, 14596), (1424, 14350), (1435, 14240), (1640, 12460), (1780, 11480), (2050, 9968), (2225, 9184), (2296, 8900), (2492, 8200), (2800, 7298), (2848, 7175), (2870, 7120), (3115, 6560), (3280, 6230), (3560, 5740), (3649, 5600), (4100, 4984), (4450, 4592)]