28813880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1223}}^1$

素因数の和:1284

約数の個数: 64

約数和(自身を含む): 70502400

約数和(自身を除く): 41688520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 62, 76, 95, 124, 152, 155, 190, 248, 310, 380, 589, 620, 760, 1178, 1223, 1240, 2356, 2446, 2945, 4712, 4892, 5890, 6115, 9784, 11780, 12230, 23237, 23560, 24460, 37913, 46474, 48920, 75826, 92948, 116185, 151652, 185896, 189565, 232370, 303304, 379130, 464740, 720347, 758260, 929480, 1440694, 1516520, 2881388, 3601735, 5762776, 7203470, 14406940, 28813880]

約数ペア:

[(1, 28813880), (2, 14406940), (4, 7203470), (5, 5762776), (8, 3601735), (10, 2881388), (19, 1516520), (20, 1440694), (31, 929480), (38, 758260), (40, 720347), (62, 464740), (76, 379130), (95, 303304), (124, 232370), (152, 189565), (155, 185896), (190, 151652), (248, 116185), (310, 92948), (380, 75826), (589, 48920), (620, 46474), (760, 37913), (1178, 24460), (1223, 23560), (1240, 23237), (2356, 12230), (2446, 11780), (2945, 9784), (4712, 6115), (4892, 5890)]