28138080

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{61}}^1$

素因数の和:141

約数の個数: 144

約数和(自身を含む): 93087792

約数和(自身を除く): 64949712

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 61, 62, 80, 93, 96, 120, 122, 124, 155, 160, 183, 186, 240, 244, 248, 305, 310, 366, 372, 465, 480, 488, 496, 610, 620, 732, 744, 915, 930, 961, 976, 992, 1220, 1240, 1464, 1488, 1830, 1860, 1891, 1922, 1952, 2440, 2480, 2883, 2928, 2976, 3660, 3720, 3782, 3844, 4805, 4880, 4960, 5673, 5766, 5856, 7320, 7440, 7564, 7688, 9455, 9610, 9760, 11346, 11532, 14415, 14640, 14880, 15128, 15376, 18910, 19220, 22692, 23064, 28365, 28830, 29280, 30256, 30752, 37820, 38440, 45384, 46128, 56730, 57660, 58621, 60512, 75640, 76880, 90768, 92256, 113460, 115320, 117242, 151280, 153760, 175863, 181536, 226920, 230640, 234484, 293105, 302560, 351726, 453840, 461280, 468968, 586210, 703452, 879315, 907680, 937936, 1172420, 1406904, 1758630, 1875872, 2344840, 2813808, 3517260, 4689680, 5627616, 7034520, 9379360, 14069040, 28138080]

約数ペア:

[(1, 28138080), (2, 14069040), (3, 9379360), (4, 7034520), (5, 5627616), (6, 4689680), (8, 3517260), (10, 2813808), (12, 2344840), (15, 1875872), (16, 1758630), (20, 1406904), (24, 1172420), (30, 937936), (31, 907680), (32, 879315), (40, 703452), (48, 586210), (60, 468968), (61, 461280), (62, 453840), (80, 351726), (93, 302560), (96, 293105), (120, 234484), (122, 230640), (124, 226920), (155, 181536), (160, 175863), (183, 153760), (186, 151280), (240, 117242), (244, 115320), (248, 113460), (305, 92256), (310, 90768), (366, 76880), (372, 75640), (465, 60512), (480, 58621), (488, 57660), (496, 56730), (610, 46128), (620, 45384), (732, 38440), (744, 37820), (915, 30752), (930, 30256), (961, 29280), (976, 28830), (992, 28365), (1220, 23064), (1240, 22692), (1464, 19220), (1488, 18910), (1830, 15376), (1860, 15128), (1891, 14880), (1922, 14640), (1952, 14415), (2440, 11532), (2480, 11346), (2883, 9760), (2928, 9610), (2976, 9455), (3660, 7688), (3720, 7564), (3782, 7440), (3844, 7320), (4805, 5856), (4880, 5766), (4960, 5673)]