19581960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{331}}^1$

素因数の和:391

約数の個数: 128

約数和(自身を含む): 64540800

約数和(自身を除く): 44958840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 29, 30, 34, 40, 51, 58, 60, 68, 85, 87, 102, 116, 120, 136, 145, 170, 174, 204, 232, 255, 290, 331, 340, 348, 408, 435, 493, 510, 580, 662, 680, 696, 870, 986, 993, 1020, 1160, 1324, 1479, 1655, 1740, 1972, 1986, 2040, 2465, 2648, 2958, 3310, 3480, 3944, 3972, 4930, 4965, 5627, 5916, 6620, 7395, 7944, 9599, 9860, 9930, 11254, 11832, 13240, 14790, 16881, 19198, 19720, 19860, 22508, 28135, 28797, 29580, 33762, 38396, 39720, 45016, 47995, 56270, 57594, 59160, 67524, 76792, 84405, 95990, 112540, 115188, 135048, 143985, 163183, 168810, 191980, 225080, 230376, 287970, 326366, 337620, 383960, 489549, 575940, 652732, 675240, 815915, 979098, 1151880, 1305464, 1631830, 1958196, 2447745, 3263660, 3916392, 4895490, 6527320, 9790980, 19581960]

約数ペア:

[(1, 19581960), (2, 9790980), (3, 6527320), (4, 4895490), (5, 3916392), (6, 3263660), (8, 2447745), (10, 1958196), (12, 1631830), (15, 1305464), (17, 1151880), (20, 979098), (24, 815915), (29, 675240), (30, 652732), (34, 575940), (40, 489549), (51, 383960), (58, 337620), (60, 326366), (68, 287970), (85, 230376), (87, 225080), (102, 191980), (116, 168810), (120, 163183), (136, 143985), (145, 135048), (170, 115188), (174, 112540), (204, 95990), (232, 84405), (255, 76792), (290, 67524), (331, 59160), (340, 57594), (348, 56270), (408, 47995), (435, 45016), (493, 39720), (510, 38396), (580, 33762), (662, 29580), (680, 28797), (696, 28135), (870, 22508), (986, 19860), (993, 19720), (1020, 19198), (1160, 16881), (1324, 14790), (1479, 13240), (1655, 11832), (1740, 11254), (1972, 9930), (1986, 9860), (2040, 9599), (2465, 7944), (2648, 7395), (2958, 6620), (3310, 5916), (3480, 5627), (3944, 4965), (3972, 4930)]