30984460

素因数分解:

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

素因数の和:227

約数の個数: 72

約数和(自身を含む): 71940960

約数和(自身を除く): 40956500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 103, 130, 169, 178, 206, 260, 338, 356, 412, 445, 515, 676, 845, 890, 1030, 1157, 1339, 1690, 1780, 2060, 2314, 2678, 3380, 4628, 5356, 5785, 6695, 9167, 11570, 13390, 15041, 17407, 18334, 23140, 26780, 30082, 34814, 36668, 45835, 60164, 69628, 75205, 87035, 91670, 119171, 150410, 174070, 183340, 238342, 300820, 348140, 476684, 595855, 1191710, 1549223, 2383420, 3098446, 6196892, 7746115, 15492230, 30984460]

約数ペア:

[(1, 30984460), (2, 15492230), (4, 7746115), (5, 6196892), (10, 3098446), (13, 2383420), (20, 1549223), (26, 1191710), (52, 595855), (65, 476684), (89, 348140), (103, 300820), (130, 238342), (169, 183340), (178, 174070), (206, 150410), (260, 119171), (338, 91670), (356, 87035), (412, 75205), (445, 69628), (515, 60164), (676, 45835), (845, 36668), (890, 34814), (1030, 30082), (1157, 26780), (1339, 23140), (1690, 18334), (1780, 17407), (2060, 15041), (2314, 13390), (2678, 11570), (3380, 9167), (4628, 6695), (5356, 5785)]