20164437280

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{379}}^1\times {\mathrm{25579}}^1$

素因数の和:25986

約数の個数: 96

約数和(自身を含む): 51440356800

約数和(自身を除く): 31275919520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 379, 416, 520, 758, 1040, 1516, 1895, 2080, 3032, 3790, 4927, 6064, 7580, 9854, 12128, 15160, 19708, 24635, 25579, 30320, 39416, 49270, 51158, 60640, 78832, 98540, 102316, 127895, 157664, 197080, 204632, 255790, 332527, 394160, 409264, 511580, 665054, 788320, 818528, 1023160, 1330108, 1662635, 2046320, 2660216, 3325270, 4092640, 5320432, 6650540, 9694441, 10640864, 13301080, 19388882, 26602160, 38777764, 48472205, 53204320, 77555528, 96944410, 126027733, 155111056, 193888820, 252055466, 310222112, 387777640, 504110932, 630138665, 775555280, 1008221864, 1260277330, 1551110560, 2016443728, 2520554660, 4032887456, 5041109320, 10082218640, 20164437280]

約数ペア:

[(1, 20164437280), (2, 10082218640), (4, 5041109320), (5, 4032887456), (8, 2520554660), (10, 2016443728), (13, 1551110560), (16, 1260277330), (20, 1008221864), (26, 775555280), (32, 630138665), (40, 504110932), (52, 387777640), (65, 310222112), (80, 252055466), (104, 193888820), (130, 155111056), (160, 126027733), (208, 96944410), (260, 77555528), (379, 53204320), (416, 48472205), (520, 38777764), (758, 26602160), (1040, 19388882), (1516, 13301080), (1895, 10640864), (2080, 9694441), (3032, 6650540), (3790, 5320432), (4927, 4092640), (6064, 3325270), (7580, 2660216), (9854, 2046320), (12128, 1662635), (15160, 1330108), (19708, 1023160), (24635, 818528), (25579, 788320), (30320, 665054), (39416, 511580), (49270, 409264), (51158, 394160), (60640, 332527), (78832, 255790), (98540, 204632), (102316, 197080), (127895, 157664)]