21787258900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{421417}}^1$

素因数の和:421489

約数の個数: 72

約数和(自身を含む): 52673878656

約数和(自身を除く): 30886619756

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 47, 50, 55, 94, 100, 110, 188, 220, 235, 275, 470, 517, 550, 940, 1034, 1100, 1175, 2068, 2350, 2585, 4700, 5170, 10340, 12925, 25850, 51700, 421417, 842834, 1685668, 2107085, 4214170, 4635587, 8428340, 9271174, 10535425, 18542348, 19806599, 21070850, 23177935, 39613198, 42141700, 46355870, 79226396, 92711740, 99032995, 115889675, 198065990, 217872589, 231779350, 396131980, 435745178, 463558700, 495164975, 871490356, 990329950, 1089362945, 1980659900, 2178725890, 4357451780, 5446814725, 10893629450, 21787258900]

約数ペア:

[(1, 21787258900), (2, 10893629450), (4, 5446814725), (5, 4357451780), (10, 2178725890), (11, 1980659900), (20, 1089362945), (22, 990329950), (25, 871490356), (44, 495164975), (47, 463558700), (50, 435745178), (55, 396131980), (94, 231779350), (100, 217872589), (110, 198065990), (188, 115889675), (220, 99032995), (235, 92711740), (275, 79226396), (470, 46355870), (517, 42141700), (550, 39613198), (940, 23177935), (1034, 21070850), (1100, 19806599), (1175, 18542348), (2068, 10535425), (2350, 9271174), (2585, 8428340), (4700, 4635587), (5170, 4214170), (10340, 2107085), (12925, 1685668), (25850, 842834), (51700, 421417)]