18860660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{241}}^1$

素因数の和:313

約数の個数: 96

約数和(自身を含む): 50088192

約数和(自身を除く): 31227532

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 43, 52, 65, 70, 86, 91, 130, 140, 172, 182, 215, 241, 260, 301, 364, 430, 455, 482, 559, 602, 860, 910, 964, 1118, 1204, 1205, 1505, 1687, 1820, 2236, 2410, 2795, 3010, 3133, 3374, 3913, 4820, 5590, 6020, 6266, 6748, 7826, 8435, 10363, 11180, 12532, 15652, 15665, 16870, 19565, 20726, 21931, 31330, 33740, 39130, 41452, 43862, 51815, 62660, 72541, 78260, 87724, 103630, 109655, 134719, 145082, 207260, 219310, 269438, 290164, 362705, 438620, 538876, 673595, 725410, 943033, 1347190, 1450820, 1886066, 2694380, 3772132, 4715165, 9430330, 18860660]

約数ペア:

[(1, 18860660), (2, 9430330), (4, 4715165), (5, 3772132), (7, 2694380), (10, 1886066), (13, 1450820), (14, 1347190), (20, 943033), (26, 725410), (28, 673595), (35, 538876), (43, 438620), (52, 362705), (65, 290164), (70, 269438), (86, 219310), (91, 207260), (130, 145082), (140, 134719), (172, 109655), (182, 103630), (215, 87724), (241, 78260), (260, 72541), (301, 62660), (364, 51815), (430, 43862), (455, 41452), (482, 39130), (559, 33740), (602, 31330), (860, 21931), (910, 20726), (964, 19565), (1118, 16870), (1204, 15665), (1205, 15652), (1505, 12532), (1687, 11180), (1820, 10363), (2236, 8435), (2410, 7826), (2795, 6748), (3010, 6266), (3133, 6020), (3374, 5590), (3913, 4820)]