778899186

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2539}}^1$

素因数の和:2605

約数の個数: 128

約数和(自身を含む): 2048256000

約数和(自身を除く): 1269356814

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 23, 26, 27, 38, 39, 46, 54, 57, 69, 78, 114, 117, 138, 171, 207, 234, 247, 299, 342, 351, 414, 437, 494, 513, 598, 621, 702, 741, 874, 897, 1026, 1242, 1311, 1482, 1794, 2223, 2539, 2622, 2691, 3933, 4446, 5078, 5382, 5681, 6669, 7617, 7866, 8073, 11362, 11799, 13338, 15234, 16146, 17043, 22851, 23598, 33007, 34086, 45702, 48241, 51129, 58397, 66014, 68553, 96482, 99021, 102258, 116794, 137106, 144723, 153387, 175191, 198042, 289446, 297063, 306774, 350382, 434169, 525573, 594126, 627133, 759161, 868338, 891189, 1051146, 1109543, 1254266, 1302507, 1518322, 1576719, 1782378, 1881399, 2219086, 2277483, 2605014, 3153438, 3328629, 3762798, 4554966, 5644197, 6657258, 6832449, 9985887, 11288394, 13664898, 14424059, 16932591, 19971774, 20497347, 28848118, 29957661, 33865182, 40994694, 43272177, 59915322, 86544354, 129816531, 259633062, 389449593, 778899186]

約数ペア:

[(1, 778899186), (2, 389449593), (3, 259633062), (6, 129816531), (9, 86544354), (13, 59915322), (18, 43272177), (19, 40994694), (23, 33865182), (26, 29957661), (27, 28848118), (38, 20497347), (39, 19971774), (46, 16932591), (54, 14424059), (57, 13664898), (69, 11288394), (78, 9985887), (114, 6832449), (117, 6657258), (138, 5644197), (171, 4554966), (207, 3762798), (234, 3328629), (247, 3153438), (299, 2605014), (342, 2277483), (351, 2219086), (414, 1881399), (437, 1782378), (494, 1576719), (513, 1518322), (598, 1302507), (621, 1254266), (702, 1109543), (741, 1051146), (874, 891189), (897, 868338), (1026, 759161), (1242, 627133), (1311, 594126), (1482, 525573), (1794, 434169), (2223, 350382), (2539, 306774), (2622, 297063), (2691, 289446), (3933, 198042), (4446, 175191), (5078, 153387), (5382, 144723), (5681, 137106), (6669, 116794), (7617, 102258), (7866, 99021), (8073, 96482), (11362, 68553), (11799, 66014), (13338, 58397), (15234, 51129), (16146, 48241), (17043, 45702), (22851, 34086), (23598, 33007)]