78676780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{311}}^1$

素因数の和:479

約数の個数: 96

約数和(自身を含む): 205470720

約数和(自身を除く): 126793940

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 139, 140, 182, 260, 278, 311, 364, 455, 556, 622, 695, 910, 973, 1244, 1390, 1555, 1807, 1820, 1946, 2177, 2780, 3110, 3614, 3892, 4043, 4354, 4865, 6220, 7228, 8086, 8708, 9035, 9730, 10885, 12649, 16172, 18070, 19460, 20215, 21770, 25298, 28301, 36140, 40430, 43229, 43540, 50596, 56602, 63245, 80860, 86458, 113204, 126490, 141505, 172916, 216145, 252980, 283010, 302603, 432290, 561977, 566020, 605206, 864580, 1123954, 1210412, 1513015, 2247908, 2809885, 3026030, 3933839, 5619770, 6052060, 7867678, 11239540, 15735356, 19669195, 39338390, 78676780]

約数ペア:

[(1, 78676780), (2, 39338390), (4, 19669195), (5, 15735356), (7, 11239540), (10, 7867678), (13, 6052060), (14, 5619770), (20, 3933839), (26, 3026030), (28, 2809885), (35, 2247908), (52, 1513015), (65, 1210412), (70, 1123954), (91, 864580), (130, 605206), (139, 566020), (140, 561977), (182, 432290), (260, 302603), (278, 283010), (311, 252980), (364, 216145), (455, 172916), (556, 141505), (622, 126490), (695, 113204), (910, 86458), (973, 80860), (1244, 63245), (1390, 56602), (1555, 50596), (1807, 43540), (1820, 43229), (1946, 40430), (2177, 36140), (2780, 28301), (3110, 25298), (3614, 21770), (3892, 20215), (4043, 19460), (4354, 18070), (4865, 16172), (6220, 12649), (7228, 10885), (8086, 9730), (8708, 9035)]