1553379620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{6217}}^1$

素因数の和:6301

約数の個数: 72

約数和(自身を含む): 3630590712

約数和(自身を除く): 2077211092

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 961, 1612, 1922, 2015, 3844, 4030, 4805, 6217, 8060, 9610, 12434, 12493, 19220, 24868, 24986, 31085, 49972, 62170, 62465, 80821, 124340, 124930, 161642, 192727, 249860, 323284, 385454, 404105, 770908, 808210, 963635, 1616420, 1927270, 2505451, 3854540, 5010902, 5974537, 10021804, 11949074, 12527255, 23898148, 25054510, 29872685, 50109020, 59745370, 77668981, 119490740, 155337962, 310675924, 388344905, 776689810, 1553379620]

約数ペア:

[(1, 1553379620), (2, 776689810), (4, 388344905), (5, 310675924), (10, 155337962), (13, 119490740), (20, 77668981), (26, 59745370), (31, 50109020), (52, 29872685), (62, 25054510), (65, 23898148), (124, 12527255), (130, 11949074), (155, 10021804), (260, 5974537), (310, 5010902), (403, 3854540), (620, 2505451), (806, 1927270), (961, 1616420), (1612, 963635), (1922, 808210), (2015, 770908), (3844, 404105), (4030, 385454), (4805, 323284), (6217, 249860), (8060, 192727), (9610, 161642), (12434, 124930), (12493, 124340), (19220, 80821), (24868, 62465), (24986, 62170), (31085, 49972)]