31276980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{241}}^1$

素因数の和:366

約数の個数: 144

約数和(自身を含む): 109933824

約数和(自身を除く): 78656844

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 103, 105, 126, 140, 180, 206, 210, 241, 252, 309, 315, 412, 420, 482, 515, 618, 630, 721, 723, 927, 964, 1030, 1205, 1236, 1260, 1442, 1446, 1545, 1687, 1854, 2060, 2163, 2169, 2410, 2884, 2892, 3090, 3374, 3605, 3615, 3708, 4326, 4338, 4635, 4820, 5061, 6180, 6489, 6748, 7210, 7230, 8435, 8652, 8676, 9270, 10122, 10815, 10845, 12978, 14420, 14460, 15183, 16870, 18540, 20244, 21630, 21690, 24823, 25305, 25956, 30366, 32445, 33740, 43260, 43380, 49646, 50610, 60732, 64890, 74469, 75915, 99292, 101220, 124115, 129780, 148938, 151830, 173761, 223407, 248230, 297876, 303660, 347522, 372345, 446814, 496460, 521283, 695044, 744690, 868805, 893628, 1042566, 1117035, 1489380, 1563849, 1737610, 2085132, 2234070, 2606415, 3127698, 3475220, 4468140, 5212830, 6255396, 7819245, 10425660, 15638490, 31276980]

約数ペア:

[(1, 31276980), (2, 15638490), (3, 10425660), (4, 7819245), (5, 6255396), (6, 5212830), (7, 4468140), (9, 3475220), (10, 3127698), (12, 2606415), (14, 2234070), (15, 2085132), (18, 1737610), (20, 1563849), (21, 1489380), (28, 1117035), (30, 1042566), (35, 893628), (36, 868805), (42, 744690), (45, 695044), (60, 521283), (63, 496460), (70, 446814), (84, 372345), (90, 347522), (103, 303660), (105, 297876), (126, 248230), (140, 223407), (180, 173761), (206, 151830), (210, 148938), (241, 129780), (252, 124115), (309, 101220), (315, 99292), (412, 75915), (420, 74469), (482, 64890), (515, 60732), (618, 50610), (630, 49646), (721, 43380), (723, 43260), (927, 33740), (964, 32445), (1030, 30366), (1205, 25956), (1236, 25305), (1260, 24823), (1442, 21690), (1446, 21630), (1545, 20244), (1687, 18540), (1854, 16870), (2060, 15183), (2163, 14460), (2169, 14420), (2410, 12978), (2884, 10845), (2892, 10815), (3090, 10122), (3374, 9270), (3605, 8676), (3615, 8652), (3708, 8435), (4326, 7230), (4338, 7210), (4635, 6748), (4820, 6489), (5061, 6180)]