308721880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1\times {\mathrm{1013}}^1$

素因数の和:1444

約数の個数: 64

約数和(自身を含む): 733730400

約数和(自身を除く): 425008520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 401, 760, 802, 1013, 1604, 2005, 2026, 3208, 4010, 4052, 5065, 7619, 8020, 8104, 10130, 15238, 16040, 19247, 20260, 30476, 38095, 38494, 40520, 60952, 76190, 76988, 96235, 152380, 153976, 192470, 304760, 384940, 406213, 769880, 812426, 1624852, 2031065, 3249704, 4062130, 7718047, 8124260, 15436094, 16248520, 30872188, 38590235, 61744376, 77180470, 154360940, 308721880]

約数ペア:

[(1, 308721880), (2, 154360940), (4, 77180470), (5, 61744376), (8, 38590235), (10, 30872188), (19, 16248520), (20, 15436094), (38, 8124260), (40, 7718047), (76, 4062130), (95, 3249704), (152, 2031065), (190, 1624852), (380, 812426), (401, 769880), (760, 406213), (802, 384940), (1013, 304760), (1604, 192470), (2005, 153976), (2026, 152380), (3208, 96235), (4010, 76988), (4052, 76190), (5065, 60952), (7619, 40520), (8020, 38494), (8104, 38095), (10130, 30476), (15238, 20260), (16040, 19247)]