20024680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{397}}^1$

素因数の和:518

約数の個数: 64

約数和(自身を含む): 49145040

約数和(自身を除く): 29120360

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 97, 104, 130, 194, 260, 388, 397, 485, 520, 776, 794, 970, 1261, 1588, 1940, 1985, 2522, 3176, 3880, 3970, 5044, 5161, 6305, 7940, 10088, 10322, 12610, 15880, 20644, 25220, 25805, 38509, 41288, 50440, 51610, 77018, 103220, 154036, 192545, 206440, 308072, 385090, 500617, 770180, 1001234, 1540360, 2002468, 2503085, 4004936, 5006170, 10012340, 20024680]

約数ペア:

[(1, 20024680), (2, 10012340), (4, 5006170), (5, 4004936), (8, 2503085), (10, 2002468), (13, 1540360), (20, 1001234), (26, 770180), (40, 500617), (52, 385090), (65, 308072), (97, 206440), (104, 192545), (130, 154036), (194, 103220), (260, 77018), (388, 51610), (397, 50440), (485, 41288), (520, 38509), (776, 25805), (794, 25220), (970, 20644), (1261, 15880), (1588, 12610), (1940, 10322), (1985, 10088), (2522, 7940), (3176, 6305), (3880, 5161), (3970, 5044)]