74474740

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1\times {\mathrm{293}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 160030080

約数和(自身を除く): 85555340

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 179, 284, 293, 355, 358, 586, 710, 716, 895, 1172, 1420, 1465, 1790, 2930, 3580, 5860, 12709, 20803, 25418, 41606, 50836, 52447, 63545, 83212, 104015, 104894, 127090, 208030, 209788, 254180, 262235, 416060, 524470, 1048940, 3723737, 7447474, 14894948, 18618685, 37237370, 74474740]

約数ペア:

[(1, 74474740), (2, 37237370), (4, 18618685), (5, 14894948), (10, 7447474), (20, 3723737), (71, 1048940), (142, 524470), (179, 416060), (284, 262235), (293, 254180), (355, 209788), (358, 208030), (586, 127090), (710, 104894), (716, 104015), (895, 83212), (1172, 63545), (1420, 52447), (1465, 50836), (1790, 41606), (2930, 25418), (3580, 20803), (5860, 12709)]