15720480

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{1213}}^1$

素因数の和:1240

約数の個数: 120

約数和(自身を含む): 55525932

約数和(自身を除く): 39805452

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 270, 288, 324, 360, 405, 432, 480, 540, 648, 720, 810, 864, 1080, 1213, 1296, 1440, 1620, 2160, 2426, 2592, 3240, 3639, 4320, 4852, 6065, 6480, 7278, 9704, 10917, 12130, 12960, 14556, 18195, 19408, 21834, 24260, 29112, 32751, 36390, 38816, 43668, 48520, 54585, 58224, 65502, 72780, 87336, 97040, 98253, 109170, 116448, 131004, 145560, 163755, 174672, 194080, 196506, 218340, 262008, 291120, 327510, 349344, 393012, 436680, 491265, 524016, 582240, 655020, 786024, 873360, 982530, 1048032, 1310040, 1572048, 1746720, 1965060, 2620080, 3144096, 3930120, 5240160, 7860240, 15720480]

約数ペア:

[(1, 15720480), (2, 7860240), (3, 5240160), (4, 3930120), (5, 3144096), (6, 2620080), (8, 1965060), (9, 1746720), (10, 1572048), (12, 1310040), (15, 1048032), (16, 982530), (18, 873360), (20, 786024), (24, 655020), (27, 582240), (30, 524016), (32, 491265), (36, 436680), (40, 393012), (45, 349344), (48, 327510), (54, 291120), (60, 262008), (72, 218340), (80, 196506), (81, 194080), (90, 174672), (96, 163755), (108, 145560), (120, 131004), (135, 116448), (144, 109170), (160, 98253), (162, 97040), (180, 87336), (216, 72780), (240, 65502), (270, 58224), (288, 54585), (324, 48520), (360, 43668), (405, 38816), (432, 36390), (480, 32751), (540, 29112), (648, 24260), (720, 21834), (810, 19408), (864, 18195), (1080, 14556), (1213, 12960), (1296, 12130), (1440, 10917), (1620, 9704), (2160, 7278), (2426, 6480), (2592, 6065), (3240, 4852), (3639, 4320)]