7427420

素因数分解:

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

素因数の和:100

約数の個数: 144

約数和(自身を含む): 21718368

約数和(自身を除く): 14290948

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 49, 52, 53, 55, 65, 70, 77, 91, 98, 106, 110, 130, 140, 143, 154, 182, 196, 212, 220, 245, 260, 265, 286, 308, 364, 371, 385, 455, 490, 530, 539, 572, 583, 637, 689, 715, 742, 770, 910, 980, 1001, 1060, 1078, 1166, 1274, 1378, 1430, 1484, 1540, 1820, 1855, 2002, 2156, 2332, 2548, 2597, 2695, 2756, 2860, 2915, 3185, 3445, 3710, 4004, 4081, 4823, 5005, 5194, 5390, 5830, 6370, 6890, 7007, 7420, 7579, 8162, 9646, 10010, 10388, 10780, 11660, 12740, 12985, 13780, 14014, 15158, 16324, 19292, 20020, 20405, 24115, 25970, 28028, 28567, 30316, 33761, 35035, 37895, 40810, 48230, 51940, 53053, 57134, 67522, 70070, 75790, 81620, 96460, 106106, 114268, 135044, 140140, 142835, 151580, 168805, 212212, 265265, 285670, 337610, 371371, 530530, 571340, 675220, 742742, 1061060, 1485484, 1856855, 3713710, 7427420]

約数ペア:

[(1, 7427420), (2, 3713710), (4, 1856855), (5, 1485484), (7, 1061060), (10, 742742), (11, 675220), (13, 571340), (14, 530530), (20, 371371), (22, 337610), (26, 285670), (28, 265265), (35, 212212), (44, 168805), (49, 151580), (52, 142835), (53, 140140), (55, 135044), (65, 114268), (70, 106106), (77, 96460), (91, 81620), (98, 75790), (106, 70070), (110, 67522), (130, 57134), (140, 53053), (143, 51940), (154, 48230), (182, 40810), (196, 37895), (212, 35035), (220, 33761), (245, 30316), (260, 28567), (265, 28028), (286, 25970), (308, 24115), (364, 20405), (371, 20020), (385, 19292), (455, 16324), (490, 15158), (530, 14014), (539, 13780), (572, 12985), (583, 12740), (637, 11660), (689, 10780), (715, 10388), (742, 10010), (770, 9646), (910, 8162), (980, 7579), (1001, 7420), (1060, 7007), (1078, 6890), (1166, 6370), (1274, 5830), (1378, 5390), (1430, 5194), (1484, 5005), (1540, 4823), (1820, 4081), (1855, 4004), (2002, 3710), (2156, 3445), (2332, 3185), (2548, 2915), (2597, 2860), (2695, 2756)]