161517440

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1163}}^1$

素因数の和:1220

約数の個数: 128

約数和(自身を含む): 455915520

約数和(自身を除く): 294398080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 140, 155, 160, 217, 224, 248, 280, 310, 320, 434, 448, 496, 560, 620, 640, 868, 896, 992, 1085, 1120, 1163, 1240, 1736, 1984, 2170, 2240, 2326, 2480, 3472, 3968, 4340, 4480, 4652, 4960, 5815, 6944, 8141, 8680, 9304, 9920, 11630, 13888, 16282, 17360, 18608, 19840, 23260, 27776, 32564, 34720, 36053, 37216, 40705, 46520, 65128, 69440, 72106, 74432, 81410, 93040, 130256, 138880, 144212, 148864, 162820, 180265, 186080, 252371, 260512, 288424, 325640, 360530, 372160, 504742, 521024, 576848, 651280, 721060, 744320, 1009484, 1042048, 1153696, 1261855, 1302560, 1442120, 2018968, 2307392, 2523710, 2605120, 2884240, 4037936, 4614784, 5047420, 5210240, 5768480, 8075872, 10094840, 11536960, 16151744, 20189680, 23073920, 32303488, 40379360, 80758720, 161517440]

約数ペア:

[(1, 161517440), (2, 80758720), (4, 40379360), (5, 32303488), (7, 23073920), (8, 20189680), (10, 16151744), (14, 11536960), (16, 10094840), (20, 8075872), (28, 5768480), (31, 5210240), (32, 5047420), (35, 4614784), (40, 4037936), (56, 2884240), (62, 2605120), (64, 2523710), (70, 2307392), (80, 2018968), (112, 1442120), (124, 1302560), (128, 1261855), (140, 1153696), (155, 1042048), (160, 1009484), (217, 744320), (224, 721060), (248, 651280), (280, 576848), (310, 521024), (320, 504742), (434, 372160), (448, 360530), (496, 325640), (560, 288424), (620, 260512), (640, 252371), (868, 186080), (896, 180265), (992, 162820), (1085, 148864), (1120, 144212), (1163, 138880), (1240, 130256), (1736, 93040), (1984, 81410), (2170, 74432), (2240, 72106), (2326, 69440), (2480, 65128), (3472, 46520), (3968, 40705), (4340, 37216), (4480, 36053), (4652, 34720), (4960, 32564), (5815, 27776), (6944, 23260), (8141, 19840), (8680, 18608), (9304, 17360), (9920, 16282), (11630, 13888)]