16689160

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{313}}^1$

素因数の和:398

約数の個数: 64

約数和(自身を含む): 39790080

約数和(自身を除く): 23100920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 43, 62, 86, 124, 155, 172, 215, 248, 310, 313, 344, 430, 620, 626, 860, 1240, 1252, 1333, 1565, 1720, 2504, 2666, 3130, 5332, 6260, 6665, 9703, 10664, 12520, 13330, 13459, 19406, 26660, 26918, 38812, 48515, 53320, 53836, 67295, 77624, 97030, 107672, 134590, 194060, 269180, 388120, 417229, 538360, 834458, 1668916, 2086145, 3337832, 4172290, 8344580, 16689160]

約数ペア:

[(1, 16689160), (2, 8344580), (4, 4172290), (5, 3337832), (8, 2086145), (10, 1668916), (20, 834458), (31, 538360), (40, 417229), (43, 388120), (62, 269180), (86, 194060), (124, 134590), (155, 107672), (172, 97030), (215, 77624), (248, 67295), (310, 53836), (313, 53320), (344, 48515), (430, 38812), (620, 26918), (626, 26660), (860, 19406), (1240, 13459), (1252, 13330), (1333, 12520), (1565, 10664), (1720, 9703), (2504, 6665), (2666, 6260), (3130, 5332)]