209564300

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{271}}^1$

素因数の和:352

約数の個数: 144

約数和(自身を含む): 538298880

約数和(自身を除く): 328734580

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 37, 38, 44, 50, 55, 74, 76, 95, 100, 110, 148, 185, 190, 209, 220, 271, 275, 370, 380, 407, 418, 475, 542, 550, 703, 740, 814, 836, 925, 950, 1045, 1084, 1100, 1355, 1406, 1628, 1850, 1900, 2035, 2090, 2710, 2812, 2981, 3515, 3700, 4070, 4180, 5149, 5225, 5420, 5962, 6775, 7030, 7733, 8140, 10027, 10175, 10298, 10450, 11924, 13550, 14060, 14905, 15466, 17575, 20054, 20350, 20596, 20900, 25745, 27100, 29810, 30932, 35150, 38665, 40108, 40700, 50135, 51490, 56639, 59620, 70300, 74525, 77330, 100270, 102980, 110297, 113278, 128725, 149050, 154660, 190513, 193325, 200540, 220594, 226556, 250675, 257450, 283195, 298100, 381026, 386650, 441188, 501350, 514900, 551485, 566390, 762052, 773300, 952565, 1002700, 1102970, 1132780, 1415975, 1905130, 2095643, 2205940, 2757425, 2831950, 3810260, 4191286, 4762825, 5514850, 5663900, 8382572, 9525650, 10478215, 11029700, 19051300, 20956430, 41912860, 52391075, 104782150, 209564300]

約数ペア:

[(1, 209564300), (2, 104782150), (4, 52391075), (5, 41912860), (10, 20956430), (11, 19051300), (19, 11029700), (20, 10478215), (22, 9525650), (25, 8382572), (37, 5663900), (38, 5514850), (44, 4762825), (50, 4191286), (55, 3810260), (74, 2831950), (76, 2757425), (95, 2205940), (100, 2095643), (110, 1905130), (148, 1415975), (185, 1132780), (190, 1102970), (209, 1002700), (220, 952565), (271, 773300), (275, 762052), (370, 566390), (380, 551485), (407, 514900), (418, 501350), (475, 441188), (542, 386650), (550, 381026), (703, 298100), (740, 283195), (814, 257450), (836, 250675), (925, 226556), (950, 220594), (1045, 200540), (1084, 193325), (1100, 190513), (1355, 154660), (1406, 149050), (1628, 128725), (1850, 113278), (1900, 110297), (2035, 102980), (2090, 100270), (2710, 77330), (2812, 74525), (2981, 70300), (3515, 59620), (3700, 56639), (4070, 51490), (4180, 50135), (5149, 40700), (5225, 40108), (5420, 38665), (5962, 35150), (6775, 30932), (7030, 29810), (7733, 27100), (8140, 25745), (10027, 20900), (10175, 20596), (10298, 20350), (10450, 20054), (11924, 17575), (13550, 15466), (14060, 14905)]