129004640

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^2\times {\mathrm{839}}^1$

素因数の和:916

約数の個数: 72

約数和(自身を含む): 315297360

約数和(自身を除く): 186292720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 839, 961, 992, 1240, 1678, 1922, 2480, 3356, 3844, 4195, 4805, 4960, 6712, 7688, 8390, 9610, 13424, 15376, 16780, 19220, 26009, 26848, 30752, 33560, 38440, 52018, 67120, 76880, 104036, 130045, 134240, 153760, 208072, 260090, 416144, 520180, 806279, 832288, 1040360, 1612558, 2080720, 3225116, 4031395, 4161440, 6450232, 8062790, 12900464, 16125580, 25800928, 32251160, 64502320, 129004640]

約数ペア:

[(1, 129004640), (2, 64502320), (4, 32251160), (5, 25800928), (8, 16125580), (10, 12900464), (16, 8062790), (20, 6450232), (31, 4161440), (32, 4031395), (40, 3225116), (62, 2080720), (80, 1612558), (124, 1040360), (155, 832288), (160, 806279), (248, 520180), (310, 416144), (496, 260090), (620, 208072), (839, 153760), (961, 134240), (992, 130045), (1240, 104036), (1678, 76880), (1922, 67120), (2480, 52018), (3356, 38440), (3844, 33560), (4195, 30752), (4805, 26848), (4960, 26009), (6712, 19220), (7688, 16780), (8390, 15376), (9610, 13424)]