65863840

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:331

約数の個数: 144

約数和(自身を含む): 187536384

約数和(自身を除く): 121672544

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 70, 80, 98, 112, 124, 140, 155, 160, 196, 217, 224, 245, 248, 271, 280, 310, 392, 434, 490, 496, 542, 560, 620, 784, 868, 980, 992, 1084, 1085, 1120, 1240, 1355, 1519, 1568, 1736, 1897, 1960, 2168, 2170, 2480, 2710, 3038, 3472, 3794, 3920, 4336, 4340, 4960, 5420, 6076, 6944, 7588, 7595, 7840, 8401, 8672, 8680, 9485, 10840, 12152, 13279, 15176, 15190, 16802, 17360, 18970, 21680, 24304, 26558, 30352, 30380, 33604, 34720, 37940, 42005, 43360, 48608, 53116, 58807, 60704, 60760, 66395, 67208, 75880, 84010, 106232, 117614, 121520, 132790, 134416, 151760, 168020, 212464, 235228, 243040, 265580, 268832, 294035, 303520, 336040, 411649, 424928, 470456, 531160, 588070, 672080, 823298, 940912, 1062320, 1176140, 1344160, 1646596, 1881824, 2058245, 2124640, 2352280, 3293192, 4116490, 4704560, 6586384, 8232980, 9409120, 13172768, 16465960, 32931920, 65863840]

約数ペア:

[(1, 65863840), (2, 32931920), (4, 16465960), (5, 13172768), (7, 9409120), (8, 8232980), (10, 6586384), (14, 4704560), (16, 4116490), (20, 3293192), (28, 2352280), (31, 2124640), (32, 2058245), (35, 1881824), (40, 1646596), (49, 1344160), (56, 1176140), (62, 1062320), (70, 940912), (80, 823298), (98, 672080), (112, 588070), (124, 531160), (140, 470456), (155, 424928), (160, 411649), (196, 336040), (217, 303520), (224, 294035), (245, 268832), (248, 265580), (271, 243040), (280, 235228), (310, 212464), (392, 168020), (434, 151760), (490, 134416), (496, 132790), (542, 121520), (560, 117614), (620, 106232), (784, 84010), (868, 75880), (980, 67208), (992, 66395), (1084, 60760), (1085, 60704), (1120, 58807), (1240, 53116), (1355, 48608), (1519, 43360), (1568, 42005), (1736, 37940), (1897, 34720), (1960, 33604), (2168, 30380), (2170, 30352), (2480, 26558), (2710, 24304), (3038, 21680), (3472, 18970), (3794, 17360), (3920, 16802), (4336, 15190), (4340, 15176), (4960, 13279), (5420, 12152), (6076, 10840), (6944, 9485), (7588, 8680), (7595, 8672), (7840, 8401)]