20804738560

素因数分解:

$2^9\times 5^1\times {\mathrm{19}}^1\times {\mathrm{619}}^1\times {\mathrm{691}}^1$

素因数の和:1352

約数の個数: 160

約数和(自身を含む): 52668950400

約数和(自身を除く): 31864211840

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 512, 608, 619, 640, 691, 760, 1216, 1238, 1280, 1382, 1520, 2432, 2476, 2560, 2764, 3040, 3095, 3455, 4864, 4952, 5528, 6080, 6190, 6910, 9728, 9904, 11056, 11761, 12160, 12380, 13129, 13820, 19808, 22112, 23522, 24320, 24760, 26258, 27640, 39616, 44224, 47044, 48640, 49520, 52516, 55280, 58805, 65645, 79232, 88448, 94088, 99040, 105032, 110560, 117610, 131290, 158464, 176896, 188176, 198080, 210064, 221120, 235220, 262580, 316928, 353792, 376352, 396160, 420128, 427729, 442240, 470440, 525160, 752704, 792320, 840256, 855458, 884480, 940880, 1050320, 1505408, 1584640, 1680512, 1710916, 1768960, 1881760, 2100640, 2138645, 3010816, 3361024, 3421832, 3763520, 4201280, 4277290, 6021632, 6722048, 6843664, 7527040, 8126851, 8402560, 8554580, 13687328, 15054080, 16253702, 16805120, 17109160, 27374656, 30108160, 32507404, 33610240, 34218320, 40634255, 54749312, 65014808, 68436640, 81268510, 109498624, 130029616, 136873280, 162537020, 218997248, 260059232, 273746560, 325074040, 520118464, 547493120, 650148080, 1040236928, 1094986240, 1300296160, 2080473856, 2600592320, 4160947712, 5201184640, 10402369280, 20804738560]

約数ペア:

[(1, 20804738560), (2, 10402369280), (4, 5201184640), (5, 4160947712), (8, 2600592320), (10, 2080473856), (16, 1300296160), (19, 1094986240), (20, 1040236928), (32, 650148080), (38, 547493120), (40, 520118464), (64, 325074040), (76, 273746560), (80, 260059232), (95, 218997248), (128, 162537020), (152, 136873280), (160, 130029616), (190, 109498624), (256, 81268510), (304, 68436640), (320, 65014808), (380, 54749312), (512, 40634255), (608, 34218320), (619, 33610240), (640, 32507404), (691, 30108160), (760, 27374656), (1216, 17109160), (1238, 16805120), (1280, 16253702), (1382, 15054080), (1520, 13687328), (2432, 8554580), (2476, 8402560), (2560, 8126851), (2764, 7527040), (3040, 6843664), (3095, 6722048), (3455, 6021632), (4864, 4277290), (4952, 4201280), (5528, 3763520), (6080, 3421832), (6190, 3361024), (6910, 3010816), (9728, 2138645), (9904, 2100640), (11056, 1881760), (11761, 1768960), (12160, 1710916), (12380, 1680512), (13129, 1584640), (13820, 1505408), (19808, 1050320), (22112, 940880), (23522, 884480), (24320, 855458), (24760, 840256), (26258, 792320), (27640, 752704), (39616, 525160), (44224, 470440), (47044, 442240), (48640, 427729), (49520, 420128), (52516, 396160), (55280, 376352), (58805, 353792), (65645, 316928), (79232, 262580), (88448, 235220), (94088, 221120), (99040, 210064), (105032, 198080), (110560, 188176), (117610, 176896), (131290, 158464)]