189748520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:283

約数の個数: 128

約数和(自身を含む): 483840000

約数和(自身を除く): 294091480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 79, 104, 124, 130, 149, 155, 158, 248, 260, 298, 310, 316, 395, 403, 520, 596, 620, 632, 745, 790, 806, 1027, 1192, 1240, 1490, 1580, 1612, 1937, 2015, 2054, 2449, 2980, 3160, 3224, 3874, 4030, 4108, 4619, 4898, 5135, 5960, 7748, 8060, 8216, 9238, 9685, 9796, 10270, 11771, 12245, 15496, 16120, 18476, 19370, 19592, 20540, 23095, 23542, 24490, 31837, 36952, 38740, 41080, 46190, 47084, 48980, 58855, 60047, 63674, 77480, 92380, 94168, 97960, 117710, 120094, 127348, 153023, 159185, 184760, 235420, 240188, 254696, 300235, 306046, 318370, 364901, 470840, 480376, 600470, 612092, 636740, 729802, 765115, 1200940, 1224184, 1273480, 1459604, 1530230, 1824505, 2401880, 2919208, 3060460, 3649010, 4743713, 6120920, 7298020, 9487426, 14596040, 18974852, 23718565, 37949704, 47437130, 94874260, 189748520]

約数ペア:

[(1, 189748520), (2, 94874260), (4, 47437130), (5, 37949704), (8, 23718565), (10, 18974852), (13, 14596040), (20, 9487426), (26, 7298020), (31, 6120920), (40, 4743713), (52, 3649010), (62, 3060460), (65, 2919208), (79, 2401880), (104, 1824505), (124, 1530230), (130, 1459604), (149, 1273480), (155, 1224184), (158, 1200940), (248, 765115), (260, 729802), (298, 636740), (310, 612092), (316, 600470), (395, 480376), (403, 470840), (520, 364901), (596, 318370), (620, 306046), (632, 300235), (745, 254696), (790, 240188), (806, 235420), (1027, 184760), (1192, 159185), (1240, 153023), (1490, 127348), (1580, 120094), (1612, 117710), (1937, 97960), (2015, 94168), (2054, 92380), (2449, 77480), (2980, 63674), (3160, 60047), (3224, 58855), (3874, 48980), (4030, 47084), (4108, 46190), (4619, 41080), (4898, 38740), (5135, 36952), (5960, 31837), (7748, 24490), (8060, 23542), (8216, 23095), (9238, 20540), (9685, 19592), (9796, 19370), (10270, 18476), (11771, 16120), (12245, 15496)]