2181394980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{739}}^1$

素因数の和:831

約数の個数: 216

約数和(自身を含む): 7149891840

約数和(自身を除く): 4968496860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 31, 36, 45, 46, 60, 62, 69, 90, 92, 93, 115, 124, 138, 155, 180, 186, 207, 230, 276, 279, 310, 345, 372, 414, 460, 465, 529, 558, 620, 690, 713, 739, 828, 930, 1035, 1058, 1116, 1380, 1395, 1426, 1478, 1587, 1860, 2070, 2116, 2139, 2217, 2645, 2790, 2852, 2956, 3174, 3565, 3695, 4140, 4278, 4434, 4761, 5290, 5580, 6348, 6417, 6651, 7130, 7390, 7935, 8556, 8868, 9522, 10580, 10695, 11085, 12834, 13302, 14260, 14780, 15870, 16399, 16997, 19044, 21390, 22170, 22909, 23805, 25668, 26604, 31740, 32085, 32798, 33255, 33994, 42780, 44340, 45818, 47610, 49197, 50991, 64170, 65596, 66510, 67988, 68727, 81995, 84985, 91636, 95220, 98394, 101982, 114545, 128340, 133020, 137454, 147591, 152973, 163990, 169970, 196788, 203964, 206181, 229090, 245985, 254955, 274908, 295182, 305946, 327980, 339940, 343635, 390931, 412362, 458180, 491970, 509910, 526907, 590364, 611892, 687270, 737955, 764865, 781862, 824724, 983940, 1019820, 1030905, 1053814, 1172793, 1374540, 1475910, 1529730, 1563724, 1580721, 1954655, 2061810, 2107628, 2345586, 2634535, 2951820, 3059460, 3161442, 3518379, 3909310, 4123620, 4691172, 4742163, 5269070, 5863965, 6322884, 7036758, 7818620, 7903605, 9484326, 10538140, 11727930, 12118861, 14073516, 15807210, 17591895, 18968652, 23455860, 23710815, 24237722, 31614420, 35183790, 36356583, 47421630, 48475444, 60594305, 70367580, 72713166, 94843260, 109069749, 121188610, 145426332, 181782915, 218139498, 242377220, 363565830, 436278996, 545348745, 727131660, 1090697490, 2181394980]

約数ペア:

[(1, 2181394980), (2, 1090697490), (3, 727131660), (4, 545348745), (5, 436278996), (6, 363565830), (9, 242377220), (10, 218139498), (12, 181782915), (15, 145426332), (18, 121188610), (20, 109069749), (23, 94843260), (30, 72713166), (31, 70367580), (36, 60594305), (45, 48475444), (46, 47421630), (60, 36356583), (62, 35183790), (69, 31614420), (90, 24237722), (92, 23710815), (93, 23455860), (115, 18968652), (124, 17591895), (138, 15807210), (155, 14073516), (180, 12118861), (186, 11727930), (207, 10538140), (230, 9484326), (276, 7903605), (279, 7818620), (310, 7036758), (345, 6322884), (372, 5863965), (414, 5269070), (460, 4742163), (465, 4691172), (529, 4123620), (558, 3909310), (620, 3518379), (690, 3161442), (713, 3059460), (739, 2951820), (828, 2634535), (930, 2345586), (1035, 2107628), (1058, 2061810), (1116, 1954655), (1380, 1580721), (1395, 1563724), (1426, 1529730), (1478, 1475910), (1587, 1374540), (1860, 1172793), (2070, 1053814), (2116, 1030905), (2139, 1019820), (2217, 983940), (2645, 824724), (2790, 781862), (2852, 764865), (2956, 737955), (3174, 687270), (3565, 611892), (3695, 590364), (4140, 526907), (4278, 509910), (4434, 491970), (4761, 458180), (5290, 412362), (5580, 390931), (6348, 343635), (6417, 339940), (6651, 327980), (7130, 305946), (7390, 295182), (7935, 274908), (8556, 254955), (8868, 245985), (9522, 229090), (10580, 206181), (10695, 203964), (11085, 196788), (12834, 169970), (13302, 163990), (14260, 152973), (14780, 147591), (15870, 137454), (16399, 133020), (16997, 128340), (19044, 114545), (21390, 101982), (22170, 98394), (22909, 95220), (23805, 91636), (25668, 84985), (26604, 81995), (31740, 68727), (32085, 67988), (32798, 66510), (33255, 65596), (33994, 64170), (42780, 50991), (44340, 49197), (45818, 47610)]