18819027700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1\times {\mathrm{1789}}^1$

素因数の和:2018

約数の個数: 144

約数和(自身を含む): 45530210880

約数和(自身を除く): 26711183180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 73, 100, 110, 131, 146, 220, 262, 275, 292, 365, 524, 550, 655, 730, 803, 1100, 1310, 1441, 1460, 1606, 1789, 1825, 2620, 2882, 3212, 3275, 3578, 3650, 4015, 5764, 6550, 7156, 7205, 7300, 8030, 8945, 9563, 13100, 14410, 16060, 17890, 19126, 19679, 20075, 28820, 35780, 36025, 38252, 39358, 40150, 44725, 47815, 72050, 78716, 80300, 89450, 95630, 98395, 105193, 130597, 144100, 178900, 191260, 196790, 210386, 234359, 239075, 261194, 393580, 420772, 468718, 478150, 491975, 522388, 525965, 652985, 937436, 956300, 983950, 1051930, 1171795, 1305970, 1436567, 1967900, 2103860, 2343590, 2577949, 2611940, 2629825, 2873134, 3264925, 4687180, 5155898, 5259650, 5746268, 5858975, 6529850, 7182835, 10311796, 10519300, 11717950, 12889745, 13059700, 14365670, 17108207, 23435900, 25779490, 28731340, 34216414, 35914175, 51558980, 64448725, 68432828, 71828350, 85541035, 128897450, 143656700, 171082070, 188190277, 257794900, 342164140, 376380554, 427705175, 752761108, 855410350, 940951385, 1710820700, 1881902770, 3763805540, 4704756925, 9409513850, 18819027700]

約数ペア:

[(1, 18819027700), (2, 9409513850), (4, 4704756925), (5, 3763805540), (10, 1881902770), (11, 1710820700), (20, 940951385), (22, 855410350), (25, 752761108), (44, 427705175), (50, 376380554), (55, 342164140), (73, 257794900), (100, 188190277), (110, 171082070), (131, 143656700), (146, 128897450), (220, 85541035), (262, 71828350), (275, 68432828), (292, 64448725), (365, 51558980), (524, 35914175), (550, 34216414), (655, 28731340), (730, 25779490), (803, 23435900), (1100, 17108207), (1310, 14365670), (1441, 13059700), (1460, 12889745), (1606, 11717950), (1789, 10519300), (1825, 10311796), (2620, 7182835), (2882, 6529850), (3212, 5858975), (3275, 5746268), (3578, 5259650), (3650, 5155898), (4015, 4687180), (5764, 3264925), (6550, 2873134), (7156, 2629825), (7205, 2611940), (7300, 2577949), (8030, 2343590), (8945, 2103860), (9563, 1967900), (13100, 1436567), (14410, 1305970), (16060, 1171795), (17890, 1051930), (19126, 983950), (19679, 956300), (20075, 937436), (28820, 652985), (35780, 525965), (36025, 522388), (38252, 491975), (39358, 478150), (40150, 468718), (44725, 420772), (47815, 393580), (72050, 261194), (78716, 239075), (80300, 234359), (89450, 210386), (95630, 196790), (98395, 191260), (105193, 178900), (130597, 144100)]