2907368940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{988901}}^1$

素因数の和:988927

約数の個数: 72

約数和(自身を含む): 9469725552

約数和(自身を除く): 6562356612

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 988901, 1977802, 2966703, 3955604, 4944505, 5933406, 6922307, 9889010, 11866812, 13844614, 14833515, 19778020, 20766921, 27689228, 29667030, 34611535, 41533842, 48456149, 59334060, 69223070, 83067684, 96912298, 103834605, 138446140, 145368447, 193824596, 207669210, 242280745, 290736894, 415338420, 484561490, 581473788, 726842235, 969122980, 1453684470, 2907368940]

約数ペア:

[(1, 2907368940), (2, 1453684470), (3, 969122980), (4, 726842235), (5, 581473788), (6, 484561490), (7, 415338420), (10, 290736894), (12, 242280745), (14, 207669210), (15, 193824596), (20, 145368447), (21, 138446140), (28, 103834605), (30, 96912298), (35, 83067684), (42, 69223070), (49, 59334060), (60, 48456149), (70, 41533842), (84, 34611535), (98, 29667030), (105, 27689228), (140, 20766921), (147, 19778020), (196, 14833515), (210, 13844614), (245, 11866812), (294, 9889010), (420, 6922307), (490, 5933406), (588, 4944505), (735, 3955604), (980, 2966703), (1470, 1977802), (2940, 988901)]