721441990

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{24631}}^1$

素因数の和:24768

約数の個数: 32

約数和(自身を含む): 1356730560

約数和(自身を除く): 635288570

約数列:

[1, 2, 5, 10, 29, 58, 101, 145, 202, 290, 505, 1010, 2929, 5858, 14645, 24631, 29290, 49262, 123155, 246310, 714299, 1428598, 2487731, 3571495, 4975462, 7142990, 12438655, 24877310, 72144199, 144288398, 360720995, 721441990]

約数ペア:

[(1, 721441990), (2, 360720995), (5, 144288398), (10, 72144199), (29, 24877310), (58, 12438655), (101, 7142990), (145, 4975462), (202, 3571495), (290, 2487731), (505, 1428598), (1010, 714299), (2929, 246310), (5858, 123155), (14645, 49262), (24631, 29290)]