20497950

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:171

約数の個数: 144

約数和(自身を含む): 62152272

約数和(自身を除く): 41654322

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 25, 30, 33, 41, 45, 50, 55, 66, 75, 82, 90, 99, 101, 110, 123, 150, 165, 198, 202, 205, 225, 246, 275, 303, 330, 369, 410, 450, 451, 495, 505, 550, 606, 615, 738, 825, 902, 909, 990, 1010, 1025, 1111, 1230, 1353, 1515, 1650, 1818, 1845, 2050, 2222, 2255, 2475, 2525, 2706, 3030, 3075, 3333, 3690, 4059, 4141, 4510, 4545, 4950, 5050, 5555, 6150, 6666, 6765, 7575, 8118, 8282, 9090, 9225, 9999, 11110, 11275, 12423, 13530, 15150, 16665, 18450, 19998, 20295, 20705, 22550, 22725, 24846, 27775, 33330, 33825, 37269, 40590, 41410, 45450, 45551, 49995, 55550, 62115, 67650, 74538, 83325, 91102, 99990, 101475, 103525, 124230, 136653, 166650, 186345, 202950, 207050, 227755, 249975, 273306, 310575, 372690, 409959, 455510, 499950, 621150, 683265, 819918, 931725, 1138775, 1366530, 1863450, 2049795, 2277550, 3416325, 4099590, 6832650, 10248975, 20497950]

約数ペア:

[(1, 20497950), (2, 10248975), (3, 6832650), (5, 4099590), (6, 3416325), (9, 2277550), (10, 2049795), (11, 1863450), (15, 1366530), (18, 1138775), (22, 931725), (25, 819918), (30, 683265), (33, 621150), (41, 499950), (45, 455510), (50, 409959), (55, 372690), (66, 310575), (75, 273306), (82, 249975), (90, 227755), (99, 207050), (101, 202950), (110, 186345), (123, 166650), (150, 136653), (165, 124230), (198, 103525), (202, 101475), (205, 99990), (225, 91102), (246, 83325), (275, 74538), (303, 67650), (330, 62115), (369, 55550), (410, 49995), (450, 45551), (451, 45450), (495, 41410), (505, 40590), (550, 37269), (606, 33825), (615, 33330), (738, 27775), (825, 24846), (902, 22725), (909, 22550), (990, 20705), (1010, 20295), (1025, 19998), (1111, 18450), (1230, 16665), (1353, 15150), (1515, 13530), (1650, 12423), (1818, 11275), (1845, 11110), (2050, 9999), (2222, 9225), (2255, 9090), (2475, 8282), (2525, 8118), (2706, 7575), (3030, 6765), (3075, 6666), (3333, 6150), (3690, 5555), (4059, 5050), (4141, 4950), (4510, 4545)]