19745040

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:126

約数の個数: 240

約数和(自身を含む): 75316608

約数和(自身を除く): 55571568

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, 49, 56, 60, 69, 70, 73, 80, 84, 92, 98, 105, 112, 115, 120, 138, 140, 146, 147, 161, 168, 184, 196, 210, 219, 230, 240, 245, 276, 280, 292, 294, 322, 336, 345, 365, 368, 392, 420, 438, 460, 483, 490, 511, 552, 560, 584, 588, 644, 690, 730, 735, 784, 805, 840, 876, 920, 966, 980, 1022, 1095, 1104, 1127, 1168, 1176, 1288, 1380, 1460, 1470, 1533, 1610, 1679, 1680, 1752, 1840, 1932, 1960, 2044, 2190, 2254, 2352, 2415, 2555, 2576, 2760, 2920, 2940, 3066, 3220, 3358, 3381, 3504, 3577, 3864, 3920, 4088, 4380, 4508, 4830, 5037, 5110, 5520, 5635, 5840, 5880, 6132, 6440, 6716, 6762, 7154, 7665, 7728, 8176, 8395, 8760, 9016, 9660, 10074, 10220, 10731, 11270, 11753, 11760, 12264, 12880, 13432, 13524, 14308, 15330, 16790, 16905, 17520, 17885, 18032, 19320, 20148, 20440, 21462, 22540, 23506, 24528, 25185, 26864, 27048, 28616, 30660, 33580, 33810, 35259, 35770, 38640, 40296, 40880, 42924, 45080, 47012, 50370, 53655, 54096, 57232, 58765, 61320, 67160, 67620, 70518, 71540, 80592, 82271, 85848, 90160, 94024, 100740, 107310, 117530, 122640, 134320, 135240, 141036, 143080, 164542, 171696, 176295, 188048, 201480, 214620, 235060, 246813, 270480, 282072, 286160, 329084, 352590, 402960, 411355, 429240, 470120, 493626, 564144, 658168, 705180, 822710, 858480, 940240, 987252, 1234065, 1316336, 1410360, 1645420, 1974504, 2468130, 2820720, 3290840, 3949008, 4936260, 6581680, 9872520, 19745040]

約数ペア:

[(1, 19745040), (2, 9872520), (3, 6581680), (4, 4936260), (5, 3949008), (6, 3290840), (7, 2820720), (8, 2468130), (10, 1974504), (12, 1645420), (14, 1410360), (15, 1316336), (16, 1234065), (20, 987252), (21, 940240), (23, 858480), (24, 822710), (28, 705180), (30, 658168), (35, 564144), (40, 493626), (42, 470120), (46, 429240), (48, 411355), (49, 402960), (56, 352590), (60, 329084), (69, 286160), (70, 282072), (73, 270480), (80, 246813), (84, 235060), (92, 214620), (98, 201480), (105, 188048), (112, 176295), (115, 171696), (120, 164542), (138, 143080), (140, 141036), (146, 135240), (147, 134320), (161, 122640), (168, 117530), (184, 107310), (196, 100740), (210, 94024), (219, 90160), (230, 85848), (240, 82271), (245, 80592), (276, 71540), (280, 70518), (292, 67620), (294, 67160), (322, 61320), (336, 58765), (345, 57232), (365, 54096), (368, 53655), (392, 50370), (420, 47012), (438, 45080), (460, 42924), (483, 40880), (490, 40296), (511, 38640), (552, 35770), (560, 35259), (584, 33810), (588, 33580), (644, 30660), (690, 28616), (730, 27048), (735, 26864), (784, 25185), (805, 24528), (840, 23506), (876, 22540), (920, 21462), (966, 20440), (980, 20148), (1022, 19320), (1095, 18032), (1104, 17885), (1127, 17520), (1168, 16905), (1176, 16790), (1288, 15330), (1380, 14308), (1460, 13524), (1470, 13432), (1533, 12880), (1610, 12264), (1679, 11760), (1680, 11753), (1752, 11270), (1840, 10731), (1932, 10220), (1960, 10074), (2044, 9660), (2190, 9016), (2254, 8760), (2352, 8395), (2415, 8176), (2555, 7728), (2576, 7665), (2760, 7154), (2920, 6762), (2940, 6716), (3066, 6440), (3220, 6132), (3358, 5880), (3381, 5840), (3504, 5635), (3577, 5520), (3864, 5110), (3920, 5037), (4088, 4830), (4380, 4508)]