12981560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:109

約数の個数: 96

約数和(自身を含む): 32918400

約数和(自身を除く): 19936840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 29, 31, 38, 40, 58, 62, 76, 95, 116, 124, 145, 152, 155, 190, 232, 248, 290, 310, 361, 380, 551, 580, 589, 620, 722, 760, 899, 1102, 1160, 1178, 1240, 1444, 1798, 1805, 2204, 2356, 2755, 2888, 2945, 3596, 3610, 4408, 4495, 4712, 5510, 5890, 7192, 7220, 8990, 10469, 11020, 11191, 11780, 14440, 17081, 17980, 20938, 22040, 22382, 23560, 34162, 35960, 41876, 44764, 52345, 55955, 68324, 83752, 85405, 89528, 104690, 111910, 136648, 170810, 209380, 223820, 324539, 341620, 418760, 447640, 649078, 683240, 1298156, 1622695, 2596312, 3245390, 6490780, 12981560]

約数ペア:

[(1, 12981560), (2, 6490780), (4, 3245390), (5, 2596312), (8, 1622695), (10, 1298156), (19, 683240), (20, 649078), (29, 447640), (31, 418760), (38, 341620), (40, 324539), (58, 223820), (62, 209380), (76, 170810), (95, 136648), (116, 111910), (124, 104690), (145, 89528), (152, 85405), (155, 83752), (190, 68324), (232, 55955), (248, 52345), (290, 44764), (310, 41876), (361, 35960), (380, 34162), (551, 23560), (580, 22382), (589, 22040), (620, 20938), (722, 17980), (760, 17081), (899, 14440), (1102, 11780), (1160, 11191), (1178, 11020), (1240, 10469), (1444, 8990), (1798, 7220), (1805, 7192), (2204, 5890), (2356, 5510), (2755, 4712), (2888, 4495), (2945, 4408), (3596, 3610)]