19004440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{227}}^1$

素因数の和:281

約数の個数: 128

約数和(自身を含む): 55157760

約数和(自身を除く): 36153320

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 23, 26, 28, 35, 40, 46, 52, 56, 65, 70, 91, 92, 104, 115, 130, 140, 161, 182, 184, 227, 230, 260, 280, 299, 322, 364, 454, 455, 460, 520, 598, 644, 728, 805, 908, 910, 920, 1135, 1196, 1288, 1495, 1589, 1610, 1816, 1820, 2093, 2270, 2392, 2951, 2990, 3178, 3220, 3640, 4186, 4540, 5221, 5902, 5980, 6356, 6440, 7945, 8372, 9080, 10442, 10465, 11804, 11960, 12712, 14755, 15890, 16744, 20657, 20884, 20930, 23608, 26105, 29510, 31780, 36547, 41314, 41768, 41860, 52210, 59020, 63560, 67873, 73094, 82628, 83720, 103285, 104420, 118040, 135746, 146188, 165256, 182735, 206570, 208840, 271492, 292376, 339365, 365470, 413140, 475111, 542984, 678730, 730940, 826280, 950222, 1357460, 1461880, 1900444, 2375555, 2714920, 3800888, 4751110, 9502220, 19004440]

約数ペア:

[(1, 19004440), (2, 9502220), (4, 4751110), (5, 3800888), (7, 2714920), (8, 2375555), (10, 1900444), (13, 1461880), (14, 1357460), (20, 950222), (23, 826280), (26, 730940), (28, 678730), (35, 542984), (40, 475111), (46, 413140), (52, 365470), (56, 339365), (65, 292376), (70, 271492), (91, 208840), (92, 206570), (104, 182735), (115, 165256), (130, 146188), (140, 135746), (161, 118040), (182, 104420), (184, 103285), (227, 83720), (230, 82628), (260, 73094), (280, 67873), (299, 63560), (322, 59020), (364, 52210), (454, 41860), (455, 41768), (460, 41314), (520, 36547), (598, 31780), (644, 29510), (728, 26105), (805, 23608), (908, 20930), (910, 20884), (920, 20657), (1135, 16744), (1196, 15890), (1288, 14755), (1495, 12712), (1589, 11960), (1610, 11804), (1816, 10465), (1820, 10442), (2093, 9080), (2270, 8372), (2392, 7945), (2951, 6440), (2990, 6356), (3178, 5980), (3220, 5902), (3640, 5221), (4186, 4540)]