20577180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:116

約数の個数: 192

約数和(自身を含む): 68640768

約数和(自身を除く): 48063588

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 23, 26, 30, 31, 37, 39, 46, 52, 60, 62, 65, 69, 74, 78, 92, 93, 111, 115, 124, 130, 138, 148, 155, 156, 185, 186, 195, 222, 230, 260, 276, 299, 310, 345, 370, 372, 390, 403, 444, 460, 465, 481, 555, 598, 620, 690, 713, 740, 780, 806, 851, 897, 930, 962, 1110, 1147, 1196, 1209, 1380, 1426, 1443, 1495, 1612, 1702, 1794, 1860, 1924, 2015, 2139, 2220, 2294, 2405, 2418, 2553, 2852, 2886, 2990, 3404, 3441, 3565, 3588, 4030, 4255, 4278, 4485, 4588, 4810, 4836, 5106, 5735, 5772, 5980, 6045, 6882, 7130, 7215, 8060, 8510, 8556, 8970, 9269, 9620, 10212, 10695, 11063, 11470, 12090, 12765, 13764, 14260, 14430, 14911, 17020, 17205, 17940, 18538, 21390, 22126, 22940, 24180, 25530, 26381, 27807, 28860, 29822, 33189, 34410, 37076, 42780, 44252, 44733, 46345, 51060, 52762, 55315, 55614, 59644, 66378, 68820, 74555, 79143, 89466, 92690, 105524, 110630, 111228, 131905, 132756, 139035, 149110, 158286, 165945, 178932, 185380, 221260, 223665, 263810, 278070, 298220, 316572, 331890, 342953, 395715, 447330, 527620, 556140, 663780, 685906, 791430, 894660, 1028859, 1371812, 1582860, 1714765, 2057718, 3429530, 4115436, 5144295, 6859060, 10288590, 20577180]

約数ペア:

[(1, 20577180), (2, 10288590), (3, 6859060), (4, 5144295), (5, 4115436), (6, 3429530), (10, 2057718), (12, 1714765), (13, 1582860), (15, 1371812), (20, 1028859), (23, 894660), (26, 791430), (30, 685906), (31, 663780), (37, 556140), (39, 527620), (46, 447330), (52, 395715), (60, 342953), (62, 331890), (65, 316572), (69, 298220), (74, 278070), (78, 263810), (92, 223665), (93, 221260), (111, 185380), (115, 178932), (124, 165945), (130, 158286), (138, 149110), (148, 139035), (155, 132756), (156, 131905), (185, 111228), (186, 110630), (195, 105524), (222, 92690), (230, 89466), (260, 79143), (276, 74555), (299, 68820), (310, 66378), (345, 59644), (370, 55614), (372, 55315), (390, 52762), (403, 51060), (444, 46345), (460, 44733), (465, 44252), (481, 42780), (555, 37076), (598, 34410), (620, 33189), (690, 29822), (713, 28860), (740, 27807), (780, 26381), (806, 25530), (851, 24180), (897, 22940), (930, 22126), (962, 21390), (1110, 18538), (1147, 17940), (1196, 17205), (1209, 17020), (1380, 14911), (1426, 14430), (1443, 14260), (1495, 13764), (1612, 12765), (1702, 12090), (1794, 11470), (1860, 11063), (1924, 10695), (2015, 10212), (2139, 9620), (2220, 9269), (2294, 8970), (2405, 8556), (2418, 8510), (2553, 8060), (2852, 7215), (2886, 7130), (2990, 6882), (3404, 6045), (3441, 5980), (3565, 5772), (3588, 5735), (4030, 5106), (4255, 4836), (4278, 4810), (4485, 4588)]