18877760

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:232

約数の個数: 112

約数和(自身を含む): 50913792

約数和(自身を除く): 32036032

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 88, 110, 124, 155, 160, 173, 176, 220, 248, 310, 320, 341, 346, 352, 440, 496, 620, 682, 692, 704, 865, 880, 992, 1240, 1364, 1384, 1705, 1730, 1760, 1903, 1984, 2480, 2728, 2768, 3410, 3460, 3520, 3806, 4960, 5363, 5456, 5536, 6820, 6920, 7612, 9515, 9920, 10726, 10912, 11072, 13640, 13840, 15224, 19030, 21452, 21824, 26815, 27280, 27680, 30448, 38060, 42904, 53630, 54560, 55360, 58993, 60896, 76120, 85808, 107260, 109120, 117986, 121792, 152240, 171616, 214520, 235972, 294965, 304480, 343232, 429040, 471944, 589930, 608960, 858080, 943888, 1179860, 1716160, 1887776, 2359720, 3775552, 4719440, 9438880, 18877760]

約数ペア:

[(1, 18877760), (2, 9438880), (4, 4719440), (5, 3775552), (8, 2359720), (10, 1887776), (11, 1716160), (16, 1179860), (20, 943888), (22, 858080), (31, 608960), (32, 589930), (40, 471944), (44, 429040), (55, 343232), (62, 304480), (64, 294965), (80, 235972), (88, 214520), (110, 171616), (124, 152240), (155, 121792), (160, 117986), (173, 109120), (176, 107260), (220, 85808), (248, 76120), (310, 60896), (320, 58993), (341, 55360), (346, 54560), (352, 53630), (440, 42904), (496, 38060), (620, 30448), (682, 27680), (692, 27280), (704, 26815), (865, 21824), (880, 21452), (992, 19030), (1240, 15224), (1364, 13840), (1384, 13640), (1705, 11072), (1730, 10912), (1760, 10726), (1903, 9920), (1984, 9515), (2480, 7612), (2728, 6920), (2768, 6820), (3410, 5536), (3460, 5456), (3520, 5363), (3806, 4960)]