19667760

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{509}}^1$

素因数の和:555

約数の個数: 160

約数和(自身を含む): 72852480

約数和(自身を除く): 53184720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 48, 56, 60, 69, 70, 80, 84, 92, 105, 112, 115, 120, 138, 140, 161, 168, 184, 210, 230, 240, 276, 280, 322, 336, 345, 368, 420, 460, 483, 509, 552, 560, 644, 690, 805, 840, 920, 966, 1018, 1104, 1288, 1380, 1527, 1610, 1680, 1840, 1932, 2036, 2415, 2545, 2576, 2760, 3054, 3220, 3563, 3864, 4072, 4830, 5090, 5520, 6108, 6440, 7126, 7635, 7728, 8144, 9660, 10180, 10689, 11707, 12216, 12880, 14252, 15270, 17815, 19320, 20360, 21378, 23414, 24432, 28504, 30540, 35121, 35630, 38640, 40720, 42756, 46828, 53445, 57008, 58535, 61080, 70242, 71260, 81949, 85512, 93656, 106890, 117070, 122160, 140484, 142520, 163898, 171024, 175605, 187312, 213780, 234140, 245847, 280968, 285040, 327796, 351210, 409745, 427560, 468280, 491694, 561936, 655592, 702420, 819490, 855120, 936560, 983388, 1229235, 1311184, 1404840, 1638980, 1966776, 2458470, 2809680, 3277960, 3933552, 4916940, 6555920, 9833880, 19667760]

約数ペア:

[(1, 19667760), (2, 9833880), (3, 6555920), (4, 4916940), (5, 3933552), (6, 3277960), (7, 2809680), (8, 2458470), (10, 1966776), (12, 1638980), (14, 1404840), (15, 1311184), (16, 1229235), (20, 983388), (21, 936560), (23, 855120), (24, 819490), (28, 702420), (30, 655592), (35, 561936), (40, 491694), (42, 468280), (46, 427560), (48, 409745), (56, 351210), (60, 327796), (69, 285040), (70, 280968), (80, 245847), (84, 234140), (92, 213780), (105, 187312), (112, 175605), (115, 171024), (120, 163898), (138, 142520), (140, 140484), (161, 122160), (168, 117070), (184, 106890), (210, 93656), (230, 85512), (240, 81949), (276, 71260), (280, 70242), (322, 61080), (336, 58535), (345, 57008), (368, 53445), (420, 46828), (460, 42756), (483, 40720), (509, 38640), (552, 35630), (560, 35121), (644, 30540), (690, 28504), (805, 24432), (840, 23414), (920, 21378), (966, 20360), (1018, 19320), (1104, 17815), (1288, 15270), (1380, 14252), (1527, 12880), (1610, 12216), (1680, 11707), (1840, 10689), (1932, 10180), (2036, 9660), (2415, 8144), (2545, 7728), (2576, 7635), (2760, 7126), (3054, 6440), (3220, 6108), (3563, 5520), (3864, 5090), (4072, 4830)]