291250720

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1\times {\mathrm{181}}^1$

素因数の和:398

約数の個数: 96

約数和(自身を含む): 705846960

約数和(自身を除く): 414596240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 113, 160, 178, 181, 226, 356, 362, 445, 452, 565, 712, 724, 890, 904, 905, 1130, 1424, 1448, 1780, 1808, 1810, 2260, 2848, 2896, 3560, 3616, 3620, 4520, 5792, 7120, 7240, 9040, 10057, 14240, 14480, 16109, 18080, 20114, 20453, 28960, 32218, 40228, 40906, 50285, 64436, 80456, 80545, 81812, 100570, 102265, 128872, 160912, 161090, 163624, 201140, 204530, 257744, 321824, 322180, 327248, 402280, 409060, 515488, 644360, 654496, 804560, 818120, 1288720, 1609120, 1636240, 1820317, 2577440, 3272480, 3640634, 7281268, 9101585, 14562536, 18203170, 29125072, 36406340, 58250144, 72812680, 145625360, 291250720]

約数ペア:

[(1, 291250720), (2, 145625360), (4, 72812680), (5, 58250144), (8, 36406340), (10, 29125072), (16, 18203170), (20, 14562536), (32, 9101585), (40, 7281268), (80, 3640634), (89, 3272480), (113, 2577440), (160, 1820317), (178, 1636240), (181, 1609120), (226, 1288720), (356, 818120), (362, 804560), (445, 654496), (452, 644360), (565, 515488), (712, 409060), (724, 402280), (890, 327248), (904, 322180), (905, 321824), (1130, 257744), (1424, 204530), (1448, 201140), (1780, 163624), (1808, 161090), (1810, 160912), (2260, 128872), (2848, 102265), (2896, 100570), (3560, 81812), (3616, 80545), (3620, 80456), (4520, 64436), (5792, 50285), (7120, 40906), (7240, 40228), (9040, 32218), (10057, 28960), (14240, 20453), (14480, 20114), (16109, 18080)]