71764420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:210

約数の個数: 144

約数和(自身を含む): 194660928

約数和(自身を除く): 122896508

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 43, 49, 52, 65, 70, 86, 91, 98, 130, 131, 140, 172, 182, 196, 215, 245, 260, 262, 301, 364, 430, 455, 490, 524, 559, 602, 637, 655, 860, 910, 917, 980, 1118, 1204, 1274, 1310, 1505, 1703, 1820, 1834, 2107, 2236, 2548, 2620, 2795, 3010, 3185, 3406, 3668, 3913, 4214, 4585, 5590, 5633, 6020, 6370, 6419, 6812, 7826, 8428, 8515, 9170, 10535, 11180, 11266, 11921, 12740, 12838, 15652, 17030, 18340, 19565, 21070, 22532, 23842, 25676, 27391, 28165, 32095, 34060, 39130, 39431, 42140, 47684, 54782, 56330, 59605, 64190, 73229, 78260, 78862, 83447, 109564, 112660, 119210, 128380, 136955, 146458, 157724, 166894, 197155, 238420, 273910, 276017, 292916, 333788, 366145, 394310, 417235, 512603, 547820, 552034, 732290, 788620, 834470, 1025206, 1104068, 1380085, 1464580, 1668940, 2050412, 2563015, 2760170, 3588221, 5126030, 5520340, 7176442, 10252060, 14352884, 17941105, 35882210, 71764420]

約数ペア:

[(1, 71764420), (2, 35882210), (4, 17941105), (5, 14352884), (7, 10252060), (10, 7176442), (13, 5520340), (14, 5126030), (20, 3588221), (26, 2760170), (28, 2563015), (35, 2050412), (43, 1668940), (49, 1464580), (52, 1380085), (65, 1104068), (70, 1025206), (86, 834470), (91, 788620), (98, 732290), (130, 552034), (131, 547820), (140, 512603), (172, 417235), (182, 394310), (196, 366145), (215, 333788), (245, 292916), (260, 276017), (262, 273910), (301, 238420), (364, 197155), (430, 166894), (455, 157724), (490, 146458), (524, 136955), (559, 128380), (602, 119210), (637, 112660), (655, 109564), (860, 83447), (910, 78862), (917, 78260), (980, 73229), (1118, 64190), (1204, 59605), (1274, 56330), (1310, 54782), (1505, 47684), (1703, 42140), (1820, 39431), (1834, 39130), (2107, 34060), (2236, 32095), (2548, 28165), (2620, 27391), (2795, 25676), (3010, 23842), (3185, 22532), (3406, 21070), (3668, 19565), (3913, 18340), (4214, 17030), (4585, 15652), (5590, 12838), (5633, 12740), (6020, 11921), (6370, 11266), (6419, 11180), (6812, 10535), (7826, 9170), (8428, 8515)]