268889140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:186

約数の個数: 144

約数和(自身を含む): 664070400

約数和(自身を除く): 395181260

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 53, 65, 76, 79, 95, 106, 130, 158, 169, 190, 212, 247, 260, 265, 316, 338, 380, 395, 494, 530, 676, 689, 790, 845, 988, 1007, 1027, 1060, 1235, 1378, 1501, 1580, 1690, 2014, 2054, 2470, 2756, 3002, 3211, 3380, 3445, 4028, 4108, 4187, 4940, 5035, 5135, 6004, 6422, 6890, 7505, 8374, 8957, 10070, 10270, 12844, 13091, 13351, 13780, 15010, 16055, 16748, 17914, 19513, 20140, 20540, 20935, 26182, 26702, 30020, 32110, 35828, 39026, 41870, 44785, 52364, 53404, 54431, 64220, 65455, 66755, 78052, 79553, 83740, 89570, 97565, 108862, 130910, 133510, 159106, 170183, 179140, 195130, 217724, 253669, 261820, 267020, 272155, 318212, 340366, 390260, 397765, 507338, 544310, 680732, 707603, 795530, 850915, 1014676, 1034189, 1088620, 1268345, 1415206, 1591060, 1701830, 2068378, 2536690, 2830412, 3403660, 3538015, 4136756, 5073380, 5170945, 7076030, 10341890, 13444457, 14152060, 20683780, 26888914, 53777828, 67222285, 134444570, 268889140]

約数ペア:

[(1, 268889140), (2, 134444570), (4, 67222285), (5, 53777828), (10, 26888914), (13, 20683780), (19, 14152060), (20, 13444457), (26, 10341890), (38, 7076030), (52, 5170945), (53, 5073380), (65, 4136756), (76, 3538015), (79, 3403660), (95, 2830412), (106, 2536690), (130, 2068378), (158, 1701830), (169, 1591060), (190, 1415206), (212, 1268345), (247, 1088620), (260, 1034189), (265, 1014676), (316, 850915), (338, 795530), (380, 707603), (395, 680732), (494, 544310), (530, 507338), (676, 397765), (689, 390260), (790, 340366), (845, 318212), (988, 272155), (1007, 267020), (1027, 261820), (1060, 253669), (1235, 217724), (1378, 195130), (1501, 179140), (1580, 170183), (1690, 159106), (2014, 133510), (2054, 130910), (2470, 108862), (2756, 97565), (3002, 89570), (3211, 83740), (3380, 79553), (3445, 78052), (4028, 66755), (4108, 65455), (4187, 64220), (4940, 54431), (5035, 53404), (5135, 52364), (6004, 44785), (6422, 41870), (6890, 39026), (7505, 35828), (8374, 32110), (8957, 30020), (10070, 26702), (10270, 26182), (12844, 20935), (13091, 20540), (13351, 20140), (13780, 19513), (15010, 17914), (16055, 16748)]