1816366880

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^2\times {\mathrm{11813}}^1$

素因数の和:11890

約数の個数: 72

約数和(自身を含む): 4434432156

約数和(自身を除く): 2618065276

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 961, 992, 1240, 1922, 2480, 3844, 4805, 4960, 7688, 9610, 11813, 15376, 19220, 23626, 30752, 38440, 47252, 59065, 76880, 94504, 118130, 153760, 189008, 236260, 366203, 378016, 472520, 732406, 945040, 1464812, 1831015, 1890080, 2929624, 3662030, 5859248, 7324060, 11352293, 11718496, 14648120, 22704586, 29296240, 45409172, 56761465, 58592480, 90818344, 113522930, 181636688, 227045860, 363273376, 454091720, 908183440, 1816366880]

約数ペア:

[(1, 1816366880), (2, 908183440), (4, 454091720), (5, 363273376), (8, 227045860), (10, 181636688), (16, 113522930), (20, 90818344), (31, 58592480), (32, 56761465), (40, 45409172), (62, 29296240), (80, 22704586), (124, 14648120), (155, 11718496), (160, 11352293), (248, 7324060), (310, 5859248), (496, 3662030), (620, 2929624), (961, 1890080), (992, 1831015), (1240, 1464812), (1922, 945040), (2480, 732406), (3844, 472520), (4805, 378016), (4960, 366203), (7688, 236260), (9610, 189008), (11813, 153760), (15376, 118130), (19220, 94504), (23626, 76880), (30752, 59065), (38440, 47252)]