21000200

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:267

約数の個数: 96

約数和(自身を含む): 54137160

約数和(自身を除く): 33136960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 41, 50, 52, 65, 82, 100, 104, 130, 164, 197, 200, 205, 260, 325, 328, 394, 410, 520, 533, 650, 788, 820, 985, 1025, 1066, 1300, 1576, 1640, 1970, 2050, 2132, 2561, 2600, 2665, 3940, 4100, 4264, 4925, 5122, 5330, 7880, 8077, 8200, 9850, 10244, 10660, 12805, 13325, 16154, 19700, 20488, 21320, 25610, 26650, 32308, 39400, 40385, 51220, 53300, 64025, 64616, 80770, 102440, 105001, 106600, 128050, 161540, 201925, 210002, 256100, 323080, 403850, 420004, 512200, 525005, 807700, 840008, 1050010, 1615400, 2100020, 2625025, 4200040, 5250050, 10500100, 21000200]

約数ペア:

[(1, 21000200), (2, 10500100), (4, 5250050), (5, 4200040), (8, 2625025), (10, 2100020), (13, 1615400), (20, 1050010), (25, 840008), (26, 807700), (40, 525005), (41, 512200), (50, 420004), (52, 403850), (65, 323080), (82, 256100), (100, 210002), (104, 201925), (130, 161540), (164, 128050), (197, 106600), (200, 105001), (205, 102440), (260, 80770), (325, 64616), (328, 64025), (394, 53300), (410, 51220), (520, 40385), (533, 39400), (650, 32308), (788, 26650), (820, 25610), (985, 21320), (1025, 20488), (1066, 19700), (1300, 16154), (1576, 13325), (1640, 12805), (1970, 10660), (2050, 10244), (2132, 9850), (2561, 8200), (2600, 8077), (2665, 7880), (3940, 5330), (4100, 5122), (4264, 4925)]