161880732

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{20347}}^1$

素因数の和:20387

約数の個数: 72

約数和(自身を含む): 466620336

約数和(自身を除く): 304739604

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 34, 36, 39, 51, 52, 68, 78, 102, 117, 153, 156, 204, 221, 234, 306, 442, 468, 612, 663, 884, 1326, 1989, 2652, 3978, 7956, 20347, 40694, 61041, 81388, 122082, 183123, 244164, 264511, 345899, 366246, 529022, 691798, 732492, 793533, 1037697, 1058044, 1383596, 1587066, 2075394, 2380599, 3113091, 3174132, 4150788, 4496687, 4761198, 6226182, 8993374, 9522396, 12452364, 13490061, 17986748, 26980122, 40470183, 53960244, 80940366, 161880732]

約数ペア:

[(1, 161880732), (2, 80940366), (3, 53960244), (4, 40470183), (6, 26980122), (9, 17986748), (12, 13490061), (13, 12452364), (17, 9522396), (18, 8993374), (26, 6226182), (34, 4761198), (36, 4496687), (39, 4150788), (51, 3174132), (52, 3113091), (68, 2380599), (78, 2075394), (102, 1587066), (117, 1383596), (153, 1058044), (156, 1037697), (204, 793533), (221, 732492), (234, 691798), (306, 529022), (442, 366246), (468, 345899), (612, 264511), (663, 244164), (884, 183123), (1326, 122082), (1989, 81388), (2652, 61041), (3978, 40694), (7956, 20347)]