1998976720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{62003}}^1$

素因数の和:62060

約数の個数: 80

約数和(自身を含む): 5166669312

約数和(自身を除く): 3167692592

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 8060, 16120, 32240, 62003, 124006, 248012, 310015, 496024, 620030, 806039, 992048, 1240060, 1612078, 1922093, 2480120, 3224156, 3844186, 4030195, 4960240, 6448312, 7688372, 8060390, 9610465, 12896624, 15376744, 16120780, 19220930, 24987209, 30753488, 32241560, 38441860, 49974418, 64483120, 76883720, 99948836, 124936045, 153767440, 199897672, 249872090, 399795344, 499744180, 999488360, 1998976720]

約数ペア:

[(1, 1998976720), (2, 999488360), (4, 499744180), (5, 399795344), (8, 249872090), (10, 199897672), (13, 153767440), (16, 124936045), (20, 99948836), (26, 76883720), (31, 64483120), (40, 49974418), (52, 38441860), (62, 32241560), (65, 30753488), (80, 24987209), (104, 19220930), (124, 16120780), (130, 15376744), (155, 12896624), (208, 9610465), (248, 8060390), (260, 7688372), (310, 6448312), (403, 4960240), (496, 4030195), (520, 3844186), (620, 3224156), (806, 2480120), (1040, 1922093), (1240, 1612078), (1612, 1240060), (2015, 992048), (2480, 806039), (3224, 620030), (4030, 496024), (6448, 310015), (8060, 248012), (16120, 124006), (32240, 62003)]