123688580

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{619}}^1$

素因数の和:828

約数の個数: 48

約数和(自身を含む): 265399680

約数和(自身を除く): 141711100

約数列:

[1, 2, 4, 5, 10, 20, 97, 103, 194, 206, 388, 412, 485, 515, 619, 970, 1030, 1238, 1940, 2060, 2476, 3095, 6190, 9991, 12380, 19982, 39964, 49955, 60043, 63757, 99910, 120086, 127514, 199820, 240172, 255028, 300215, 318785, 600430, 637570, 1200860, 1275140, 6184429, 12368858, 24737716, 30922145, 61844290, 123688580]

約数ペア:

[(1, 123688580), (2, 61844290), (4, 30922145), (5, 24737716), (10, 12368858), (20, 6184429), (97, 1275140), (103, 1200860), (194, 637570), (206, 600430), (388, 318785), (412, 300215), (485, 255028), (515, 240172), (619, 199820), (970, 127514), (1030, 120086), (1238, 99910), (1940, 63757), (2060, 60043), (2476, 49955), (3095, 39964), (6190, 19982), (9991, 12380)]