20274540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1$

素因数の和:192

約数の個数: 192

約数和(自身を含む): 71124480

約数和(自身を除く): 50849940

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 17, 20, 22, 26, 30, 33, 34, 39, 44, 51, 52, 55, 60, 65, 66, 68, 78, 85, 102, 110, 130, 132, 139, 143, 156, 165, 170, 187, 195, 204, 220, 221, 255, 260, 278, 286, 330, 340, 374, 390, 417, 429, 442, 510, 556, 561, 572, 660, 663, 695, 715, 748, 780, 834, 858, 884, 935, 1020, 1105, 1122, 1326, 1390, 1430, 1529, 1668, 1716, 1807, 1870, 2085, 2145, 2210, 2244, 2363, 2431, 2652, 2780, 2805, 2860, 3058, 3315, 3614, 3740, 4170, 4290, 4420, 4587, 4726, 4862, 5421, 5610, 6116, 6630, 7089, 7228, 7293, 7645, 8340, 8580, 9035, 9174, 9452, 9724, 10842, 11220, 11815, 12155, 13260, 14178, 14586, 15290, 18070, 18348, 19877, 21684, 22935, 23630, 24310, 25993, 27105, 28356, 29172, 30580, 30719, 35445, 36140, 36465, 39754, 45870, 47260, 48620, 51986, 54210, 59631, 61438, 70890, 72930, 77979, 79508, 91740, 92157, 99385, 103972, 108420, 119262, 122876, 129965, 141780, 145860, 153595, 155958, 184314, 198770, 238524, 259930, 298155, 307190, 311916, 337909, 368628, 389895, 397540, 460785, 519860, 596310, 614380, 675818, 779790, 921570, 1013727, 1192620, 1351636, 1559580, 1689545, 1843140, 2027454, 3379090, 4054908, 5068635, 6758180, 10137270, 20274540]

約数ペア:

[(1, 20274540), (2, 10137270), (3, 6758180), (4, 5068635), (5, 4054908), (6, 3379090), (10, 2027454), (11, 1843140), (12, 1689545), (13, 1559580), (15, 1351636), (17, 1192620), (20, 1013727), (22, 921570), (26, 779790), (30, 675818), (33, 614380), (34, 596310), (39, 519860), (44, 460785), (51, 397540), (52, 389895), (55, 368628), (60, 337909), (65, 311916), (66, 307190), (68, 298155), (78, 259930), (85, 238524), (102, 198770), (110, 184314), (130, 155958), (132, 153595), (139, 145860), (143, 141780), (156, 129965), (165, 122876), (170, 119262), (187, 108420), (195, 103972), (204, 99385), (220, 92157), (221, 91740), (255, 79508), (260, 77979), (278, 72930), (286, 70890), (330, 61438), (340, 59631), (374, 54210), (390, 51986), (417, 48620), (429, 47260), (442, 45870), (510, 39754), (556, 36465), (561, 36140), (572, 35445), (660, 30719), (663, 30580), (695, 29172), (715, 28356), (748, 27105), (780, 25993), (834, 24310), (858, 23630), (884, 22935), (935, 21684), (1020, 19877), (1105, 18348), (1122, 18070), (1326, 15290), (1390, 14586), (1430, 14178), (1529, 13260), (1668, 12155), (1716, 11815), (1807, 11220), (1870, 10842), (2085, 9724), (2145, 9452), (2210, 9174), (2244, 9035), (2363, 8580), (2431, 8340), (2652, 7645), (2780, 7293), (2805, 7228), (2860, 7089), (3058, 6630), (3315, 6116), (3614, 5610), (3740, 5421), (4170, 4862), (4290, 4726), (4420, 4587)]