1668940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1$

素因数の和:167

約数の個数: 72

約数和(自身を含む): 4424112

約数和(自身を除く): 2755172

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 131, 140, 182, 196, 245, 260, 262, 364, 455, 490, 524, 637, 655, 910, 917, 980, 1274, 1310, 1703, 1820, 1834, 2548, 2620, 3185, 3406, 3668, 4585, 6370, 6419, 6812, 8515, 9170, 11921, 12740, 12838, 17030, 18340, 23842, 25676, 32095, 34060, 47684, 59605, 64190, 83447, 119210, 128380, 166894, 238420, 333788, 417235, 834470, 1668940]

約数ペア:

[(1, 1668940), (2, 834470), (4, 417235), (5, 333788), (7, 238420), (10, 166894), (13, 128380), (14, 119210), (20, 83447), (26, 64190), (28, 59605), (35, 47684), (49, 34060), (52, 32095), (65, 25676), (70, 23842), (91, 18340), (98, 17030), (130, 12838), (131, 12740), (140, 11921), (182, 9170), (196, 8515), (245, 6812), (260, 6419), (262, 6370), (364, 4585), (455, 3668), (490, 3406), (524, 3185), (637, 2620), (655, 2548), (910, 1834), (917, 1820), (980, 1703), (1274, 1310)]