19539780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:126

約数の個数: 144

約数和(自身を含む): 61979904

約数和(自身を除く): 42440124

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 41, 47, 52, 60, 65, 78, 82, 94, 123, 130, 141, 156, 164, 169, 188, 195, 205, 235, 246, 260, 282, 338, 390, 410, 470, 492, 507, 533, 564, 611, 615, 676, 705, 780, 820, 845, 940, 1014, 1066, 1222, 1230, 1410, 1599, 1690, 1833, 1927, 2028, 2132, 2444, 2460, 2535, 2665, 2820, 3055, 3198, 3380, 3666, 3854, 5070, 5330, 5781, 6110, 6396, 6929, 7332, 7708, 7943, 7995, 9165, 9635, 10140, 10660, 11562, 12220, 13858, 15886, 15990, 18330, 19270, 20787, 23124, 23829, 25051, 27716, 28905, 31772, 31980, 34645, 36660, 38540, 39715, 41574, 47658, 50102, 57810, 69290, 75153, 79430, 83148, 95316, 100204, 103935, 115620, 119145, 125255, 138580, 150306, 158860, 207870, 238290, 250510, 300612, 325663, 375765, 415740, 476580, 501020, 651326, 751530, 976989, 1302652, 1503060, 1628315, 1953978, 3256630, 3907956, 4884945, 6513260, 9769890, 19539780]

約数ペア:

[(1, 19539780), (2, 9769890), (3, 6513260), (4, 4884945), (5, 3907956), (6, 3256630), (10, 1953978), (12, 1628315), (13, 1503060), (15, 1302652), (20, 976989), (26, 751530), (30, 651326), (39, 501020), (41, 476580), (47, 415740), (52, 375765), (60, 325663), (65, 300612), (78, 250510), (82, 238290), (94, 207870), (123, 158860), (130, 150306), (141, 138580), (156, 125255), (164, 119145), (169, 115620), (188, 103935), (195, 100204), (205, 95316), (235, 83148), (246, 79430), (260, 75153), (282, 69290), (338, 57810), (390, 50102), (410, 47658), (470, 41574), (492, 39715), (507, 38540), (533, 36660), (564, 34645), (611, 31980), (615, 31772), (676, 28905), (705, 27716), (780, 25051), (820, 23829), (845, 23124), (940, 20787), (1014, 19270), (1066, 18330), (1222, 15990), (1230, 15886), (1410, 13858), (1599, 12220), (1690, 11562), (1833, 10660), (1927, 10140), (2028, 9635), (2132, 9165), (2444, 7995), (2460, 7943), (2535, 7708), (2665, 7332), (2820, 6929), (3055, 6396), (3198, 6110), (3380, 5781), (3666, 5330), (3854, 5070)]