201398990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^3\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:238

約数の個数: 64

約数和(自身を含む): 400982400

約数和(自身を除く): 199583410

約数列:

[1, 2, 5, 10, 13, 26, 65, 89, 103, 130, 169, 178, 206, 338, 445, 515, 845, 890, 1030, 1157, 1339, 1690, 2197, 2314, 2678, 4394, 5785, 6695, 9167, 10985, 11570, 13390, 15041, 17407, 18334, 21970, 30082, 34814, 45835, 75205, 87035, 91670, 119171, 150410, 174070, 195533, 226291, 238342, 391066, 452582, 595855, 977665, 1131455, 1191710, 1549223, 1955330, 2262910, 3098446, 7746115, 15492230, 20139899, 40279798, 100699495, 201398990]

約数ペア:

[(1, 201398990), (2, 100699495), (5, 40279798), (10, 20139899), (13, 15492230), (26, 7746115), (65, 3098446), (89, 2262910), (103, 1955330), (130, 1549223), (169, 1191710), (178, 1131455), (206, 977665), (338, 595855), (445, 452582), (515, 391066), (845, 238342), (890, 226291), (1030, 195533), (1157, 174070), (1339, 150410), (1690, 119171), (2197, 91670), (2314, 87035), (2678, 75205), (4394, 45835), (5785, 34814), (6695, 30082), (9167, 21970), (10985, 18334), (11570, 17407), (13390, 15041)]