161231940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{563}}^1$

素因数の和:658

約数の個数: 144

約数和(自身を含む): 514882368

約数和(自身を除く): 353650428

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 43, 45, 60, 74, 86, 90, 111, 129, 148, 172, 180, 185, 215, 222, 258, 333, 370, 387, 430, 444, 516, 555, 563, 645, 666, 740, 774, 860, 1110, 1126, 1290, 1332, 1548, 1591, 1665, 1689, 1935, 2220, 2252, 2580, 2815, 3182, 3330, 3378, 3870, 4773, 5067, 5630, 6364, 6660, 6756, 7740, 7955, 8445, 9546, 10134, 11260, 14319, 15910, 16890, 19092, 20268, 20831, 23865, 24209, 25335, 28638, 31820, 33780, 41662, 47730, 48418, 50670, 57276, 62493, 71595, 72627, 83324, 95460, 96836, 101340, 104155, 121045, 124986, 143190, 145254, 187479, 208310, 217881, 242090, 249972, 286380, 290508, 312465, 363135, 374958, 416620, 435762, 484180, 624930, 726270, 749916, 871524, 895733, 937395, 1089405, 1249860, 1452540, 1791466, 1874790, 2178810, 2687199, 3582932, 3749580, 4357620, 4478665, 5374398, 8061597, 8957330, 10748796, 13435995, 16123194, 17914660, 26871990, 32246388, 40307985, 53743980, 80615970, 161231940]

約数ペア:

[(1, 161231940), (2, 80615970), (3, 53743980), (4, 40307985), (5, 32246388), (6, 26871990), (9, 17914660), (10, 16123194), (12, 13435995), (15, 10748796), (18, 8957330), (20, 8061597), (30, 5374398), (36, 4478665), (37, 4357620), (43, 3749580), (45, 3582932), (60, 2687199), (74, 2178810), (86, 1874790), (90, 1791466), (111, 1452540), (129, 1249860), (148, 1089405), (172, 937395), (180, 895733), (185, 871524), (215, 749916), (222, 726270), (258, 624930), (333, 484180), (370, 435762), (387, 416620), (430, 374958), (444, 363135), (516, 312465), (555, 290508), (563, 286380), (645, 249972), (666, 242090), (740, 217881), (774, 208310), (860, 187479), (1110, 145254), (1126, 143190), (1290, 124986), (1332, 121045), (1548, 104155), (1591, 101340), (1665, 96836), (1689, 95460), (1935, 83324), (2220, 72627), (2252, 71595), (2580, 62493), (2815, 57276), (3182, 50670), (3330, 48418), (3378, 47730), (3870, 41662), (4773, 33780), (5067, 31820), (5630, 28638), (6364, 25335), (6660, 24209), (6756, 23865), (7740, 20831), (7955, 20268), (8445, 19092), (9546, 16890), (10134, 15910), (11260, 14319)]