20171180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1447}}^1$

素因数の和:1514

約数の個数: 48

約数和(自身を含む): 45976896

約数和(自身を除く): 25805716

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 82, 85, 164, 170, 205, 340, 410, 697, 820, 1394, 1447, 2788, 2894, 3485, 5788, 6970, 7235, 13940, 14470, 24599, 28940, 49198, 59327, 98396, 118654, 122995, 237308, 245990, 296635, 491980, 593270, 1008559, 1186540, 2017118, 4034236, 5042795, 10085590, 20171180]

約数ペア:

[(1, 20171180), (2, 10085590), (4, 5042795), (5, 4034236), (10, 2017118), (17, 1186540), (20, 1008559), (34, 593270), (41, 491980), (68, 296635), (82, 245990), (85, 237308), (164, 122995), (170, 118654), (205, 98396), (340, 59327), (410, 49198), (697, 28940), (820, 24599), (1394, 14470), (1447, 13940), (2788, 7235), (2894, 6970), (3485, 5788)]