49986040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{991}}^1$

素因数の和:1112

約数の個数: 64

約数和(自身を含む): 122492160

約数和(自身を除く): 72506120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 97, 104, 130, 194, 260, 388, 485, 520, 776, 970, 991, 1261, 1940, 1982, 2522, 3880, 3964, 4955, 5044, 6305, 7928, 9910, 10088, 12610, 12883, 19820, 25220, 25766, 39640, 50440, 51532, 64415, 96127, 103064, 128830, 192254, 257660, 384508, 480635, 515320, 769016, 961270, 1249651, 1922540, 2499302, 3845080, 4998604, 6248255, 9997208, 12496510, 24993020, 49986040]

約数ペア:

[(1, 49986040), (2, 24993020), (4, 12496510), (5, 9997208), (8, 6248255), (10, 4998604), (13, 3845080), (20, 2499302), (26, 1922540), (40, 1249651), (52, 961270), (65, 769016), (97, 515320), (104, 480635), (130, 384508), (194, 257660), (260, 192254), (388, 128830), (485, 103064), (520, 96127), (776, 64415), (970, 51532), (991, 50440), (1261, 39640), (1940, 25766), (1982, 25220), (2522, 19820), (3880, 12883), (3964, 12610), (4955, 10088), (5044, 9910), (6305, 7928)]