397273280

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^3\times {\mathrm{181}}^1$

素因数の和:255

約数の個数: 112

約数和(自身を含む): 1004072160

約数和(自身を除く): 606798880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 181, 190, 304, 320, 361, 362, 380, 608, 722, 724, 760, 905, 1216, 1444, 1448, 1520, 1805, 1810, 2888, 2896, 3040, 3439, 3610, 3620, 5776, 5792, 6080, 6859, 6878, 7220, 7240, 11552, 11584, 13718, 13756, 14440, 14480, 17195, 23104, 27436, 27512, 28880, 28960, 34295, 34390, 54872, 55024, 57760, 57920, 65341, 68590, 68780, 109744, 110048, 115520, 130682, 137180, 137560, 219488, 220096, 261364, 274360, 275120, 326705, 438976, 522728, 548720, 550240, 653410, 1045456, 1097440, 1100480, 1241479, 1306820, 2090912, 2194880, 2482958, 2613640, 4181824, 4965916, 5227280, 6207395, 9931832, 10454560, 12414790, 19863664, 20909120, 24829580, 39727328, 49659160, 79454656, 99318320, 198636640, 397273280]

約数ペア:

[(1, 397273280), (2, 198636640), (4, 99318320), (5, 79454656), (8, 49659160), (10, 39727328), (16, 24829580), (19, 20909120), (20, 19863664), (32, 12414790), (38, 10454560), (40, 9931832), (64, 6207395), (76, 5227280), (80, 4965916), (95, 4181824), (152, 2613640), (160, 2482958), (181, 2194880), (190, 2090912), (304, 1306820), (320, 1241479), (361, 1100480), (362, 1097440), (380, 1045456), (608, 653410), (722, 550240), (724, 548720), (760, 522728), (905, 438976), (1216, 326705), (1444, 275120), (1448, 274360), (1520, 261364), (1805, 220096), (1810, 219488), (2888, 137560), (2896, 137180), (3040, 130682), (3439, 115520), (3610, 110048), (3620, 109744), (5776, 68780), (5792, 68590), (6080, 65341), (6859, 57920), (6878, 57760), (7220, 55024), (7240, 54872), (11552, 34390), (11584, 34295), (13718, 28960), (13756, 28880), (14440, 27512), (14480, 27436), (17195, 23104)]