20028170

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^2$

素因数の和:167

約数の個数: 48

約数和(自身を含む): 39578112

約数和(自身を除く): 19549942

約数列:

[1, 2, 5, 10, 23, 31, 46, 53, 62, 106, 115, 155, 230, 265, 310, 530, 713, 1219, 1426, 1643, 2438, 2809, 3286, 3565, 5618, 6095, 7130, 8215, 12190, 14045, 16430, 28090, 37789, 64607, 75578, 87079, 129214, 174158, 188945, 323035, 377890, 435395, 646070, 870790, 2002817, 4005634, 10014085, 20028170]

約数ペア:

[(1, 20028170), (2, 10014085), (5, 4005634), (10, 2002817), (23, 870790), (31, 646070), (46, 435395), (53, 377890), (62, 323035), (106, 188945), (115, 174158), (155, 129214), (230, 87079), (265, 75578), (310, 64607), (530, 37789), (713, 28090), (1219, 16430), (1426, 14045), (1643, 12190), (2438, 8215), (2809, 7130), (3286, 6095), (3565, 5618)]