31485440

素因数分解:

$2^9\times 5^1\times 7^2\times {\mathrm{251}}^1$

素因数の和:288

約数の個数: 120

約数和(自身を含む): 88166232

約数和(自身を除く): 56680792

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 251, 256, 280, 320, 392, 448, 490, 502, 512, 560, 640, 784, 896, 980, 1004, 1120, 1255, 1280, 1568, 1757, 1792, 1960, 2008, 2240, 2510, 2560, 3136, 3514, 3584, 3920, 4016, 4480, 5020, 6272, 7028, 7840, 8032, 8785, 8960, 10040, 12299, 12544, 14056, 15680, 16064, 17570, 17920, 20080, 24598, 25088, 28112, 31360, 32128, 35140, 40160, 49196, 56224, 61495, 62720, 64256, 70280, 80320, 98392, 112448, 122990, 125440, 128512, 140560, 160640, 196784, 224896, 245980, 281120, 321280, 393568, 449792, 491960, 562240, 642560, 787136, 899584, 983920, 1124480, 1574272, 1967840, 2248960, 3148544, 3935680, 4497920, 6297088, 7871360, 15742720, 31485440]

約数ペア:

[(1, 31485440), (2, 15742720), (4, 7871360), (5, 6297088), (7, 4497920), (8, 3935680), (10, 3148544), (14, 2248960), (16, 1967840), (20, 1574272), (28, 1124480), (32, 983920), (35, 899584), (40, 787136), (49, 642560), (56, 562240), (64, 491960), (70, 449792), (80, 393568), (98, 321280), (112, 281120), (128, 245980), (140, 224896), (160, 196784), (196, 160640), (224, 140560), (245, 128512), (251, 125440), (256, 122990), (280, 112448), (320, 98392), (392, 80320), (448, 70280), (490, 64256), (502, 62720), (512, 61495), (560, 56224), (640, 49196), (784, 40160), (896, 35140), (980, 32128), (1004, 31360), (1120, 28112), (1255, 25088), (1280, 24598), (1568, 20080), (1757, 17920), (1792, 17570), (1960, 16064), (2008, 15680), (2240, 14056), (2510, 12544), (2560, 12299), (3136, 10040), (3514, 8960), (3584, 8785), (3920, 8032), (4016, 7840), (4480, 7028), (5020, 6272)]