19071780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{499}}^1$

素因数の和:538

約数の個数: 144

約数和(自身を含む): 67032000

約数和(自身を除く): 47960220

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 49, 52, 60, 65, 70, 78, 84, 91, 98, 105, 130, 140, 147, 156, 182, 195, 196, 210, 245, 260, 273, 294, 364, 390, 420, 455, 490, 499, 546, 588, 637, 735, 780, 910, 980, 998, 1092, 1274, 1365, 1470, 1497, 1820, 1911, 1996, 2495, 2548, 2730, 2940, 2994, 3185, 3493, 3822, 4990, 5460, 5988, 6370, 6487, 6986, 7485, 7644, 9555, 9980, 10479, 12740, 12974, 13972, 14970, 17465, 19110, 19461, 20958, 24451, 25948, 29940, 32435, 34930, 38220, 38922, 41916, 45409, 48902, 52395, 64870, 69860, 73353, 77844, 90818, 97305, 97804, 104790, 122255, 129740, 136227, 146706, 181636, 194610, 209580, 227045, 244510, 272454, 293412, 317863, 366765, 389220, 454090, 489020, 544908, 635726, 681135, 733530, 908180, 953589, 1271452, 1362270, 1467060, 1589315, 1907178, 2724540, 3178630, 3814356, 4767945, 6357260, 9535890, 19071780]

約数ペア:

[(1, 19071780), (2, 9535890), (3, 6357260), (4, 4767945), (5, 3814356), (6, 3178630), (7, 2724540), (10, 1907178), (12, 1589315), (13, 1467060), (14, 1362270), (15, 1271452), (20, 953589), (21, 908180), (26, 733530), (28, 681135), (30, 635726), (35, 544908), (39, 489020), (42, 454090), (49, 389220), (52, 366765), (60, 317863), (65, 293412), (70, 272454), (78, 244510), (84, 227045), (91, 209580), (98, 194610), (105, 181636), (130, 146706), (140, 136227), (147, 129740), (156, 122255), (182, 104790), (195, 97804), (196, 97305), (210, 90818), (245, 77844), (260, 73353), (273, 69860), (294, 64870), (364, 52395), (390, 48902), (420, 45409), (455, 41916), (490, 38922), (499, 38220), (546, 34930), (588, 32435), (637, 29940), (735, 25948), (780, 24451), (910, 20958), (980, 19461), (998, 19110), (1092, 17465), (1274, 14970), (1365, 13972), (1470, 12974), (1497, 12740), (1820, 10479), (1911, 9980), (1996, 9555), (2495, 7644), (2548, 7485), (2730, 6986), (2940, 6487), (2994, 6370), (3185, 5988), (3493, 5460), (3822, 4990)]