215772700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1$

素因数の和:308

約数の個数: 144

約数和(自身を含む): 559964160

約数和(自身を除く): 344191460

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 25, 26, 44, 50, 52, 55, 65, 79, 100, 110, 130, 143, 158, 191, 220, 260, 275, 286, 316, 325, 382, 395, 550, 572, 650, 715, 764, 790, 869, 955, 1027, 1100, 1300, 1430, 1580, 1738, 1910, 1975, 2054, 2101, 2483, 2860, 3476, 3575, 3820, 3950, 4108, 4202, 4345, 4775, 4966, 5135, 7150, 7900, 8404, 8690, 9550, 9932, 10270, 10505, 11297, 12415, 14300, 15089, 17380, 19100, 20540, 21010, 21725, 22594, 24830, 25675, 27313, 30178, 42020, 43450, 45188, 49660, 51350, 52525, 54626, 56485, 60356, 62075, 75445, 86900, 102700, 105050, 109252, 112970, 124150, 136565, 150890, 165979, 196157, 210100, 225940, 248300, 273130, 282425, 301780, 331958, 377225, 392314, 546260, 564850, 663916, 682825, 754450, 784628, 829895, 980785, 1129700, 1365650, 1508900, 1659790, 1961570, 2157727, 2731300, 3319580, 3923140, 4149475, 4315454, 4903925, 8298950, 8630908, 9807850, 10788635, 16597900, 19615700, 21577270, 43154540, 53943175, 107886350, 215772700]

約数ペア:

[(1, 215772700), (2, 107886350), (4, 53943175), (5, 43154540), (10, 21577270), (11, 19615700), (13, 16597900), (20, 10788635), (22, 9807850), (25, 8630908), (26, 8298950), (44, 4903925), (50, 4315454), (52, 4149475), (55, 3923140), (65, 3319580), (79, 2731300), (100, 2157727), (110, 1961570), (130, 1659790), (143, 1508900), (158, 1365650), (191, 1129700), (220, 980785), (260, 829895), (275, 784628), (286, 754450), (316, 682825), (325, 663916), (382, 564850), (395, 546260), (550, 392314), (572, 377225), (650, 331958), (715, 301780), (764, 282425), (790, 273130), (869, 248300), (955, 225940), (1027, 210100), (1100, 196157), (1300, 165979), (1430, 150890), (1580, 136565), (1738, 124150), (1910, 112970), (1975, 109252), (2054, 105050), (2101, 102700), (2483, 86900), (2860, 75445), (3476, 62075), (3575, 60356), (3820, 56485), (3950, 54626), (4108, 52525), (4202, 51350), (4345, 49660), (4775, 45188), (4966, 43450), (5135, 42020), (7150, 30178), (7900, 27313), (8404, 25675), (8690, 24830), (9550, 22594), (9932, 21725), (10270, 21010), (10505, 20540), (11297, 19100), (12415, 17380), (14300, 15089)]