78421816

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:173

約数の個数: 128

約数和(自身を含む): 186624000

約数和(自身を除く): 108202184

約数列:

[1, 2, 4, 8, 11, 17, 19, 22, 31, 34, 38, 44, 62, 68, 76, 88, 89, 124, 136, 152, 178, 187, 209, 248, 323, 341, 356, 374, 418, 527, 589, 646, 682, 712, 748, 836, 979, 1054, 1178, 1292, 1364, 1496, 1513, 1672, 1691, 1958, 2108, 2356, 2584, 2728, 2759, 3026, 3382, 3553, 3916, 4216, 4712, 5518, 5797, 6052, 6479, 6764, 7106, 7832, 10013, 11036, 11594, 12104, 12958, 13528, 14212, 16643, 18601, 20026, 22072, 23188, 25916, 28424, 28747, 30349, 33286, 37202, 40052, 46376, 46903, 51832, 52421, 57494, 60698, 66572, 74404, 80104, 93806, 104842, 110143, 114988, 121396, 133144, 148808, 187612, 209684, 220286, 229976, 242792, 316217, 375224, 419368, 440572, 515933, 576631, 632434, 881144, 891157, 1031866, 1153262, 1264868, 1782314, 2063732, 2306524, 2529736, 3564628, 4127464, 4613048, 7129256, 9802727, 19605454, 39210908, 78421816]

約数ペア:

[(1, 78421816), (2, 39210908), (4, 19605454), (8, 9802727), (11, 7129256), (17, 4613048), (19, 4127464), (22, 3564628), (31, 2529736), (34, 2306524), (38, 2063732), (44, 1782314), (62, 1264868), (68, 1153262), (76, 1031866), (88, 891157), (89, 881144), (124, 632434), (136, 576631), (152, 515933), (178, 440572), (187, 419368), (209, 375224), (248, 316217), (323, 242792), (341, 229976), (356, 220286), (374, 209684), (418, 187612), (527, 148808), (589, 133144), (646, 121396), (682, 114988), (712, 110143), (748, 104842), (836, 93806), (979, 80104), (1054, 74404), (1178, 66572), (1292, 60698), (1364, 57494), (1496, 52421), (1513, 51832), (1672, 46903), (1691, 46376), (1958, 40052), (2108, 37202), (2356, 33286), (2584, 30349), (2728, 28747), (2759, 28424), (3026, 25916), (3382, 23188), (3553, 22072), (3916, 20026), (4216, 18601), (4712, 16643), (5518, 14212), (5797, 13528), (6052, 12958), (6479, 12104), (6764, 11594), (7106, 11036), (7832, 10013)]