20298340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{263}}^1$

素因数の和:516

約数の個数: 48

約数和(自身を含む): 45505152

約数和(自身を除く): 25206812

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 227, 263, 340, 454, 526, 908, 1052, 1135, 1315, 2270, 2630, 3859, 4471, 4540, 5260, 7718, 8942, 15436, 17884, 19295, 22355, 38590, 44710, 59701, 77180, 89420, 119402, 238804, 298505, 597010, 1014917, 1194020, 2029834, 4059668, 5074585, 10149170, 20298340]

約数ペア:

[(1, 20298340), (2, 10149170), (4, 5074585), (5, 4059668), (10, 2029834), (17, 1194020), (20, 1014917), (34, 597010), (68, 298505), (85, 238804), (170, 119402), (227, 89420), (263, 77180), (340, 59701), (454, 44710), (526, 38590), (908, 22355), (1052, 19295), (1135, 17884), (1315, 15436), (2270, 8942), (2630, 7718), (3859, 5260), (4471, 4540)]