20661550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1$

素因数の和:290

約数の個数: 96

約数和(自身を含む): 49996800

約数和(自身を除く): 29335250

約数列:

[1, 2, 5, 7, 10, 13, 14, 19, 25, 26, 35, 38, 50, 65, 70, 91, 95, 130, 133, 175, 182, 190, 239, 247, 266, 325, 350, 455, 475, 478, 494, 650, 665, 910, 950, 1195, 1235, 1330, 1673, 1729, 2275, 2390, 2470, 3107, 3325, 3346, 3458, 4541, 4550, 5975, 6175, 6214, 6650, 8365, 8645, 9082, 11950, 12350, 15535, 16730, 17290, 21749, 22705, 31070, 31787, 41825, 43225, 43498, 45410, 59033, 63574, 77675, 83650, 86450, 108745, 113525, 118066, 155350, 158935, 217490, 227050, 295165, 317870, 413231, 543725, 590330, 794675, 826462, 1087450, 1475825, 1589350, 2066155, 2951650, 4132310, 10330775, 20661550]

約数ペア:

[(1, 20661550), (2, 10330775), (5, 4132310), (7, 2951650), (10, 2066155), (13, 1589350), (14, 1475825), (19, 1087450), (25, 826462), (26, 794675), (35, 590330), (38, 543725), (50, 413231), (65, 317870), (70, 295165), (91, 227050), (95, 217490), (130, 158935), (133, 155350), (175, 118066), (182, 113525), (190, 108745), (239, 86450), (247, 83650), (266, 77675), (325, 63574), (350, 59033), (455, 45410), (475, 43498), (478, 43225), (494, 41825), (650, 31787), (665, 31070), (910, 22705), (950, 21749), (1195, 17290), (1235, 16730), (1330, 15535), (1673, 12350), (1729, 11950), (2275, 9082), (2390, 8645), (2470, 8365), (3107, 6650), (3325, 6214), (3346, 6175), (3458, 5975), (4541, 4550)]