25688960

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:160

約数の個数: 128

約数和(自身を含む): 69400800

約数和(自身を除く): 43711840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 41, 44, 55, 64, 80, 82, 88, 89, 110, 128, 160, 164, 176, 178, 205, 220, 320, 328, 352, 356, 410, 440, 445, 451, 640, 656, 704, 712, 820, 880, 890, 902, 979, 1312, 1408, 1424, 1640, 1760, 1780, 1804, 1958, 2255, 2624, 2848, 3280, 3520, 3560, 3608, 3649, 3916, 4510, 4895, 5248, 5696, 6560, 7040, 7120, 7216, 7298, 7832, 9020, 9790, 11392, 13120, 14240, 14432, 14596, 15664, 18040, 18245, 19580, 26240, 28480, 28864, 29192, 31328, 36080, 36490, 39160, 40139, 56960, 57728, 58384, 62656, 72160, 72980, 78320, 80278, 116768, 125312, 144320, 145960, 156640, 160556, 200695, 233536, 288640, 291920, 313280, 321112, 401390, 467072, 583840, 626560, 642224, 802780, 1167680, 1284448, 1605560, 2335360, 2568896, 3211120, 5137792, 6422240, 12844480, 25688960]

約数ペア:

[(1, 25688960), (2, 12844480), (4, 6422240), (5, 5137792), (8, 3211120), (10, 2568896), (11, 2335360), (16, 1605560), (20, 1284448), (22, 1167680), (32, 802780), (40, 642224), (41, 626560), (44, 583840), (55, 467072), (64, 401390), (80, 321112), (82, 313280), (88, 291920), (89, 288640), (110, 233536), (128, 200695), (160, 160556), (164, 156640), (176, 145960), (178, 144320), (205, 125312), (220, 116768), (320, 80278), (328, 78320), (352, 72980), (356, 72160), (410, 62656), (440, 58384), (445, 57728), (451, 56960), (640, 40139), (656, 39160), (704, 36490), (712, 36080), (820, 31328), (880, 29192), (890, 28864), (902, 28480), (979, 26240), (1312, 19580), (1408, 18245), (1424, 18040), (1640, 15664), (1760, 14596), (1780, 14432), (1804, 14240), (1958, 13120), (2255, 11392), (2624, 9790), (2848, 9020), (3280, 7832), (3520, 7298), (3560, 7216), (3608, 7120), (3649, 7040), (3916, 6560), (4510, 5696), (4895, 5248)]