20195568720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{90191}}^1$

素因数の和:90521

約数の個数: 120

約数和(自身を含む): 68042287872

約数和(自身を除く): 47846719152

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 311, 360, 622, 720, 933, 1244, 1555, 1866, 2488, 2799, 3110, 3732, 4665, 4976, 5598, 6220, 7464, 9330, 11196, 12440, 13995, 14928, 18660, 22392, 24880, 27990, 37320, 44784, 55980, 74640, 90191, 111960, 180382, 223920, 270573, 360764, 450955, 541146, 721528, 811719, 901910, 1082292, 1352865, 1443056, 1623438, 1803820, 2164584, 2705730, 3246876, 3607640, 4058595, 4329168, 5411460, 6493752, 7215280, 8117190, 10822920, 12987504, 16234380, 21645840, 28049401, 32468760, 56098802, 64937520, 84148203, 112197604, 140247005, 168296406, 224395208, 252444609, 280494010, 336592812, 420741015, 448790416, 504889218, 560988020, 673185624, 841482030, 1009778436, 1121976040, 1262223045, 1346371248, 1682964060, 2019556872, 2243952080, 2524446090, 3365928120, 4039113744, 5048892180, 6731856240, 10097784360, 20195568720]

約数ペア:

[(1, 20195568720), (2, 10097784360), (3, 6731856240), (4, 5048892180), (5, 4039113744), (6, 3365928120), (8, 2524446090), (9, 2243952080), (10, 2019556872), (12, 1682964060), (15, 1346371248), (16, 1262223045), (18, 1121976040), (20, 1009778436), (24, 841482030), (30, 673185624), (36, 560988020), (40, 504889218), (45, 448790416), (48, 420741015), (60, 336592812), (72, 280494010), (80, 252444609), (90, 224395208), (120, 168296406), (144, 140247005), (180, 112197604), (240, 84148203), (311, 64937520), (360, 56098802), (622, 32468760), (720, 28049401), (933, 21645840), (1244, 16234380), (1555, 12987504), (1866, 10822920), (2488, 8117190), (2799, 7215280), (3110, 6493752), (3732, 5411460), (4665, 4329168), (4976, 4058595), (5598, 3607640), (6220, 3246876), (7464, 2705730), (9330, 2164584), (11196, 1803820), (12440, 1623438), (13995, 1443056), (14928, 1352865), (18660, 1082292), (22392, 901910), (24880, 811719), (27990, 721528), (37320, 541146), (44784, 450955), (55980, 360764), (74640, 270573), (90191, 223920), (111960, 180382)]