19489820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1$

素因数の和:483

約数の個数: 96

約数和(自身を含む): 52254720

約数和(自身を除く): 32764900

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 19, 20, 28, 34, 35, 38, 68, 70, 76, 85, 95, 119, 133, 140, 170, 190, 238, 266, 323, 340, 380, 431, 476, 532, 595, 646, 665, 862, 1190, 1292, 1330, 1615, 1724, 2155, 2261, 2380, 2660, 3017, 3230, 4310, 4522, 6034, 6460, 7327, 8189, 8620, 9044, 11305, 12068, 14654, 15085, 16378, 22610, 29308, 30170, 32756, 36635, 40945, 45220, 51289, 57323, 60340, 73270, 81890, 102578, 114646, 139213, 146540, 163780, 205156, 229292, 256445, 278426, 286615, 512890, 556852, 573230, 696065, 974491, 1025780, 1146460, 1392130, 1948982, 2784260, 3897964, 4872455, 9744910, 19489820]

約数ペア:

[(1, 19489820), (2, 9744910), (4, 4872455), (5, 3897964), (7, 2784260), (10, 1948982), (14, 1392130), (17, 1146460), (19, 1025780), (20, 974491), (28, 696065), (34, 573230), (35, 556852), (38, 512890), (68, 286615), (70, 278426), (76, 256445), (85, 229292), (95, 205156), (119, 163780), (133, 146540), (140, 139213), (170, 114646), (190, 102578), (238, 81890), (266, 73270), (323, 60340), (340, 57323), (380, 51289), (431, 45220), (476, 40945), (532, 36635), (595, 32756), (646, 30170), (665, 29308), (862, 22610), (1190, 16378), (1292, 15085), (1330, 14654), (1615, 12068), (1724, 11305), (2155, 9044), (2261, 8620), (2380, 8189), (2660, 7327), (3017, 6460), (3230, 6034), (4310, 4522)]