19479460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1$

素因数の和:186

約数の個数: 144

約数和(自身を含む): 56306880

約数和(自身を除く): 36827420

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 49, 52, 55, 65, 70, 77, 91, 98, 110, 130, 139, 140, 143, 154, 182, 196, 220, 245, 260, 278, 286, 308, 364, 385, 455, 490, 539, 556, 572, 637, 695, 715, 770, 910, 973, 980, 1001, 1078, 1274, 1390, 1430, 1529, 1540, 1807, 1820, 1946, 2002, 2156, 2548, 2695, 2780, 2860, 3058, 3185, 3614, 3892, 4004, 4865, 5005, 5390, 6116, 6370, 6811, 7007, 7228, 7645, 9035, 9730, 10010, 10703, 10780, 12649, 12740, 13622, 14014, 15290, 18070, 19460, 19877, 20020, 21406, 25298, 27244, 28028, 30580, 34055, 35035, 36140, 39754, 42812, 50596, 53515, 63245, 68110, 70070, 74921, 79508, 88543, 99385, 107030, 126490, 136220, 139139, 140140, 149842, 177086, 198770, 214060, 252980, 278278, 299684, 354172, 374605, 397540, 442715, 556556, 695695, 749210, 885430, 973973, 1391390, 1498420, 1770860, 1947946, 2782780, 3895892, 4869865, 9739730, 19479460]

約数ペア:

[(1, 19479460), (2, 9739730), (4, 4869865), (5, 3895892), (7, 2782780), (10, 1947946), (11, 1770860), (13, 1498420), (14, 1391390), (20, 973973), (22, 885430), (26, 749210), (28, 695695), (35, 556556), (44, 442715), (49, 397540), (52, 374605), (55, 354172), (65, 299684), (70, 278278), (77, 252980), (91, 214060), (98, 198770), (110, 177086), (130, 149842), (139, 140140), (140, 139139), (143, 136220), (154, 126490), (182, 107030), (196, 99385), (220, 88543), (245, 79508), (260, 74921), (278, 70070), (286, 68110), (308, 63245), (364, 53515), (385, 50596), (455, 42812), (490, 39754), (539, 36140), (556, 35035), (572, 34055), (637, 30580), (695, 28028), (715, 27244), (770, 25298), (910, 21406), (973, 20020), (980, 19877), (1001, 19460), (1078, 18070), (1274, 15290), (1390, 14014), (1430, 13622), (1529, 12740), (1540, 12649), (1807, 10780), (1820, 10703), (1946, 10010), (2002, 9730), (2156, 9035), (2548, 7645), (2695, 7228), (2780, 7007), (2860, 6811), (3058, 6370), (3185, 6116), (3614, 5390), (3892, 5005), (4004, 4865)]