31913920

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1$

素因数の和:246

約数の個数: 112

約数和(自身を含む): 83210400

約数和(自身を除く): 51296480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 32, 38, 40, 58, 64, 76, 80, 95, 116, 145, 152, 160, 181, 190, 232, 290, 304, 320, 362, 380, 464, 551, 580, 608, 724, 760, 905, 928, 1102, 1160, 1216, 1448, 1520, 1810, 1856, 2204, 2320, 2755, 2896, 3040, 3439, 3620, 4408, 4640, 5249, 5510, 5792, 6080, 6878, 7240, 8816, 9280, 10498, 11020, 11584, 13756, 14480, 17195, 17632, 20996, 22040, 26245, 27512, 28960, 34390, 35264, 41992, 44080, 52490, 55024, 57920, 68780, 83984, 88160, 99731, 104980, 110048, 137560, 167968, 176320, 199462, 209960, 220096, 275120, 335936, 398924, 419920, 498655, 550240, 797848, 839840, 997310, 1100480, 1595696, 1679680, 1994620, 3191392, 3989240, 6382784, 7978480, 15956960, 31913920]

約数ペア:

[(1, 31913920), (2, 15956960), (4, 7978480), (5, 6382784), (8, 3989240), (10, 3191392), (16, 1994620), (19, 1679680), (20, 1595696), (29, 1100480), (32, 997310), (38, 839840), (40, 797848), (58, 550240), (64, 498655), (76, 419920), (80, 398924), (95, 335936), (116, 275120), (145, 220096), (152, 209960), (160, 199462), (181, 176320), (190, 167968), (232, 137560), (290, 110048), (304, 104980), (320, 99731), (362, 88160), (380, 83984), (464, 68780), (551, 57920), (580, 55024), (608, 52490), (724, 44080), (760, 41992), (905, 35264), (928, 34390), (1102, 28960), (1160, 27512), (1216, 26245), (1448, 22040), (1520, 20996), (1810, 17632), (1856, 17195), (2204, 14480), (2320, 13756), (2755, 11584), (2896, 11020), (3040, 10498), (3439, 9280), (3620, 8816), (4408, 7240), (4640, 6878), (5249, 6080), (5510, 5792)]