51377920

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:162

約数の個数: 144

約数和(自身を含む): 139073760

約数和(自身を除く): 87695840

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, 256, 320, 328, 352, 356, 410, 440, 445, 451, 640, 656, 704, 712, 820, 880, 890, 902, 979, 1280, 1312, 1408, 1424, 1640, 1760, 1780, 1804, 1958, 2255, 2624, 2816, 2848, 3280, 3520, 3560, 3608, 3649, 3916, 4510, 4895, 5248, 5696, 6560, 7040, 7120, 7216, 7298, 7832, 9020, 9790, 10496, 11392, 13120, 14080, 14240, 14432, 14596, 15664, 18040, 18245, 19580, 22784, 26240, 28480, 28864, 29192, 31328, 36080, 36490, 39160, 40139, 52480, 56960, 57728, 58384, 62656, 72160, 72980, 78320, 80278, 113920, 115456, 116768, 125312, 144320, 145960, 156640, 160556, 200695, 233536, 250624, 288640, 291920, 313280, 321112, 401390, 467072, 577280, 583840, 626560, 642224, 802780, 934144, 1167680, 1253120, 1284448, 1605560, 2335360, 2568896, 3211120, 4670720, 5137792, 6422240, 10275584, 12844480, 25688960, 51377920]

約数ペア:

[(1, 51377920), (2, 25688960), (4, 12844480), (5, 10275584), (8, 6422240), (10, 5137792), (11, 4670720), (16, 3211120), (20, 2568896), (22, 2335360), (32, 1605560), (40, 1284448), (41, 1253120), (44, 1167680), (55, 934144), (64, 802780), (80, 642224), (82, 626560), (88, 583840), (89, 577280), (110, 467072), (128, 401390), (160, 321112), (164, 313280), (176, 291920), (178, 288640), (205, 250624), (220, 233536), (256, 200695), (320, 160556), (328, 156640), (352, 145960), (356, 144320), (410, 125312), (440, 116768), (445, 115456), (451, 113920), (640, 80278), (656, 78320), (704, 72980), (712, 72160), (820, 62656), (880, 58384), (890, 57728), (902, 56960), (979, 52480), (1280, 40139), (1312, 39160), (1408, 36490), (1424, 36080), (1640, 31328), (1760, 29192), (1780, 28864), (1804, 28480), (1958, 26240), (2255, 22784), (2624, 19580), (2816, 18245), (2848, 18040), (3280, 15664), (3520, 14596), (3560, 14432), (3608, 14240), (3649, 14080), (3916, 13120), (4510, 11392), (4895, 10496), (5248, 9790), (5696, 9020), (6560, 7832), (7040, 7298), (7120, 7216)]