20555100

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{331}}^1$

素因数の和:377

約数の個数: 144

約数和(自身を含む): 69162240

約数和(自身を除く): 48607140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 25, 27, 30, 36, 45, 46, 50, 54, 60, 69, 75, 90, 92, 100, 108, 115, 135, 138, 150, 180, 207, 225, 230, 270, 276, 300, 331, 345, 414, 450, 460, 540, 575, 621, 662, 675, 690, 828, 900, 993, 1035, 1150, 1242, 1324, 1350, 1380, 1655, 1725, 1986, 2070, 2300, 2484, 2700, 2979, 3105, 3310, 3450, 3972, 4140, 4965, 5175, 5958, 6210, 6620, 6900, 7613, 8275, 8937, 9930, 10350, 11916, 12420, 14895, 15226, 15525, 16550, 17874, 19860, 20700, 22839, 24825, 29790, 30452, 31050, 33100, 35748, 38065, 44685, 45678, 49650, 59580, 62100, 68517, 74475, 76130, 89370, 91356, 99300, 114195, 137034, 148950, 152260, 178740, 190325, 205551, 223425, 228390, 274068, 297900, 342585, 380650, 411102, 446850, 456780, 570975, 685170, 761300, 822204, 893700, 1027755, 1141950, 1370340, 1712925, 2055510, 2283900, 3425850, 4111020, 5138775, 6851700, 10277550, 20555100]

約数ペア:

[(1, 20555100), (2, 10277550), (3, 6851700), (4, 5138775), (5, 4111020), (6, 3425850), (9, 2283900), (10, 2055510), (12, 1712925), (15, 1370340), (18, 1141950), (20, 1027755), (23, 893700), (25, 822204), (27, 761300), (30, 685170), (36, 570975), (45, 456780), (46, 446850), (50, 411102), (54, 380650), (60, 342585), (69, 297900), (75, 274068), (90, 228390), (92, 223425), (100, 205551), (108, 190325), (115, 178740), (135, 152260), (138, 148950), (150, 137034), (180, 114195), (207, 99300), (225, 91356), (230, 89370), (270, 76130), (276, 74475), (300, 68517), (331, 62100), (345, 59580), (414, 49650), (450, 45678), (460, 44685), (540, 38065), (575, 35748), (621, 33100), (662, 31050), (675, 30452), (690, 29790), (828, 24825), (900, 22839), (993, 20700), (1035, 19860), (1150, 17874), (1242, 16550), (1324, 15525), (1350, 15226), (1380, 14895), (1655, 12420), (1725, 11916), (1986, 10350), (2070, 9930), (2300, 8937), (2484, 8275), (2700, 7613), (2979, 6900), (3105, 6620), (3310, 6210), (3450, 5958), (3972, 5175), (4140, 4965)]