31388890960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{2803}}^1\times {\mathrm{19997}}^1$

素因数の和:22820

約数の個数: 80

約数和(自身を含む): 83438695296

約数和(自身を除く): 52049804336

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 2803, 5606, 11212, 14015, 19621, 19997, 22424, 28030, 39242, 39994, 44848, 56060, 78484, 79988, 98105, 99985, 112120, 139979, 156968, 159976, 196210, 199970, 224240, 279958, 313936, 319952, 392420, 399940, 559916, 699895, 784840, 799880, 1119832, 1399790, 1569680, 1599760, 2239664, 2799580, 5599160, 11198320, 56051591, 112103182, 224206364, 280257955, 392361137, 448412728, 560515910, 784722274, 896825456, 1121031820, 1569444548, 1961805685, 2242063640, 3138889096, 3923611370, 4484127280, 6277778192, 7847222740, 15694445480, 31388890960]

約数ペア:

[(1, 31388890960), (2, 15694445480), (4, 7847222740), (5, 6277778192), (7, 4484127280), (8, 3923611370), (10, 3138889096), (14, 2242063640), (16, 1961805685), (20, 1569444548), (28, 1121031820), (35, 896825456), (40, 784722274), (56, 560515910), (70, 448412728), (80, 392361137), (112, 280257955), (140, 224206364), (280, 112103182), (560, 56051591), (2803, 11198320), (5606, 5599160), (11212, 2799580), (14015, 2239664), (19621, 1599760), (19997, 1569680), (22424, 1399790), (28030, 1119832), (39242, 799880), (39994, 784840), (44848, 699895), (56060, 559916), (78484, 399940), (79988, 392420), (98105, 319952), (99985, 313936), (112120, 279958), (139979, 224240), (156968, 199970), (159976, 196210)]