21221200

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1$

素因数の和:102

約数の個数: 240

約数和(自身を含む): 69745536

約数和(自身を除く): 48524336

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 25, 26, 28, 35, 40, 44, 50, 52, 53, 55, 56, 65, 70, 77, 80, 88, 91, 100, 104, 106, 110, 112, 130, 140, 143, 154, 175, 176, 182, 200, 208, 212, 220, 260, 265, 275, 280, 286, 308, 325, 350, 364, 371, 385, 400, 424, 440, 455, 520, 530, 550, 560, 572, 583, 616, 650, 689, 700, 715, 728, 742, 770, 848, 880, 910, 1001, 1040, 1060, 1100, 1144, 1166, 1232, 1300, 1325, 1378, 1400, 1430, 1456, 1484, 1540, 1820, 1855, 1925, 2002, 2120, 2200, 2275, 2288, 2332, 2600, 2650, 2756, 2800, 2860, 2915, 2968, 3080, 3445, 3575, 3640, 3710, 3850, 4004, 4081, 4240, 4400, 4550, 4664, 4823, 5005, 5200, 5300, 5512, 5720, 5830, 5936, 6160, 6890, 7150, 7280, 7420, 7579, 7700, 8008, 8162, 9100, 9275, 9328, 9646, 10010, 10600, 11024, 11440, 11660, 13780, 14300, 14575, 14840, 15158, 15400, 16016, 16324, 17225, 18200, 18550, 19292, 20020, 20405, 21200, 23320, 24115, 25025, 27560, 28600, 29150, 29680, 30316, 30800, 32648, 34450, 36400, 37100, 37895, 38584, 40040, 40810, 46640, 48230, 50050, 53053, 55120, 57200, 58300, 60632, 65296, 68900, 74200, 75790, 77168, 80080, 81620, 96460, 100100, 102025, 106106, 116600, 120575, 121264, 137800, 148400, 151580, 163240, 189475, 192920, 200200, 204050, 212212, 233200, 241150, 265265, 275600, 303160, 326480, 378950, 385840, 400400, 408100, 424424, 482300, 530530, 606320, 757900, 816200, 848848, 964600, 1061060, 1326325, 1515800, 1632400, 1929200, 2122120, 2652650, 3031600, 4244240, 5305300, 10610600, 21221200]

約数ペア:

[(1, 21221200), (2, 10610600), (4, 5305300), (5, 4244240), (7, 3031600), (8, 2652650), (10, 2122120), (11, 1929200), (13, 1632400), (14, 1515800), (16, 1326325), (20, 1061060), (22, 964600), (25, 848848), (26, 816200), (28, 757900), (35, 606320), (40, 530530), (44, 482300), (50, 424424), (52, 408100), (53, 400400), (55, 385840), (56, 378950), (65, 326480), (70, 303160), (77, 275600), (80, 265265), (88, 241150), (91, 233200), (100, 212212), (104, 204050), (106, 200200), (110, 192920), (112, 189475), (130, 163240), (140, 151580), (143, 148400), (154, 137800), (175, 121264), (176, 120575), (182, 116600), (200, 106106), (208, 102025), (212, 100100), (220, 96460), (260, 81620), (265, 80080), (275, 77168), (280, 75790), (286, 74200), (308, 68900), (325, 65296), (350, 60632), (364, 58300), (371, 57200), (385, 55120), (400, 53053), (424, 50050), (440, 48230), (455, 46640), (520, 40810), (530, 40040), (550, 38584), (560, 37895), (572, 37100), (583, 36400), (616, 34450), (650, 32648), (689, 30800), (700, 30316), (715, 29680), (728, 29150), (742, 28600), (770, 27560), (848, 25025), (880, 24115), (910, 23320), (1001, 21200), (1040, 20405), (1060, 20020), (1100, 19292), (1144, 18550), (1166, 18200), (1232, 17225), (1300, 16324), (1325, 16016), (1378, 15400), (1400, 15158), (1430, 14840), (1456, 14575), (1484, 14300), (1540, 13780), (1820, 11660), (1855, 11440), (1925, 11024), (2002, 10600), (2120, 10010), (2200, 9646), (2275, 9328), (2288, 9275), (2332, 9100), (2600, 8162), (2650, 8008), (2756, 7700), (2800, 7579), (2860, 7420), (2915, 7280), (2968, 7150), (3080, 6890), (3445, 6160), (3575, 5936), (3640, 5830), (3710, 5720), (3850, 5512), (4004, 5300), (4081, 5200), (4240, 5005), (4400, 4823), (4550, 4664)]