18914940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{233}}^1$

素因数の和:300

約数の個数: 144

約数和(自身を含む): 64393056

約数和(自身を除く): 45478116

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 41, 44, 45, 55, 60, 66, 82, 90, 99, 110, 123, 132, 164, 165, 180, 198, 205, 220, 233, 246, 330, 369, 396, 410, 451, 466, 492, 495, 615, 660, 699, 738, 820, 902, 932, 990, 1165, 1230, 1353, 1398, 1476, 1804, 1845, 1980, 2097, 2255, 2330, 2460, 2563, 2706, 2796, 3495, 3690, 4059, 4194, 4510, 4660, 5126, 5412, 6765, 6990, 7380, 7689, 8118, 8388, 9020, 9553, 10252, 10485, 12815, 13530, 13980, 15378, 16236, 19106, 20295, 20970, 23067, 25630, 27060, 28659, 30756, 38212, 38445, 40590, 41940, 46134, 47765, 51260, 57318, 76890, 81180, 85977, 92268, 95530, 105083, 114636, 115335, 143295, 153780, 171954, 191060, 210166, 230670, 286590, 315249, 343908, 420332, 429885, 461340, 525415, 573180, 630498, 859770, 945747, 1050830, 1260996, 1576245, 1719540, 1891494, 2101660, 3152490, 3782988, 4728735, 6304980, 9457470, 18914940]

約数ペア:

[(1, 18914940), (2, 9457470), (3, 6304980), (4, 4728735), (5, 3782988), (6, 3152490), (9, 2101660), (10, 1891494), (11, 1719540), (12, 1576245), (15, 1260996), (18, 1050830), (20, 945747), (22, 859770), (30, 630498), (33, 573180), (36, 525415), (41, 461340), (44, 429885), (45, 420332), (55, 343908), (60, 315249), (66, 286590), (82, 230670), (90, 210166), (99, 191060), (110, 171954), (123, 153780), (132, 143295), (164, 115335), (165, 114636), (180, 105083), (198, 95530), (205, 92268), (220, 85977), (233, 81180), (246, 76890), (330, 57318), (369, 51260), (396, 47765), (410, 46134), (451, 41940), (466, 40590), (492, 38445), (495, 38212), (615, 30756), (660, 28659), (699, 27060), (738, 25630), (820, 23067), (902, 20970), (932, 20295), (990, 19106), (1165, 16236), (1230, 15378), (1353, 13980), (1398, 13530), (1476, 12815), (1804, 10485), (1845, 10252), (1980, 9553), (2097, 9020), (2255, 8388), (2330, 8118), (2460, 7689), (2563, 7380), (2706, 6990), (2796, 6765), (3495, 5412), (3690, 5126), (4059, 4660), (4194, 4510)]