19197220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1031}}^1$

素因数の和:1073

約数の個数: 72

約数和(自身を含む): 49412160

約数和(自身を除く): 30214940

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 931, 980, 1031, 1330, 1862, 2062, 2660, 3724, 4124, 4655, 5155, 7217, 9310, 10310, 14434, 18620, 19589, 20620, 28868, 36085, 39178, 50519, 72170, 78356, 97945, 101038, 137123, 144340, 195890, 202076, 252595, 274246, 391780, 505190, 548492, 685615, 959861, 1010380, 1371230, 1919722, 2742460, 3839444, 4799305, 9598610, 19197220]

約数ペア:

[(1, 19197220), (2, 9598610), (4, 4799305), (5, 3839444), (7, 2742460), (10, 1919722), (14, 1371230), (19, 1010380), (20, 959861), (28, 685615), (35, 548492), (38, 505190), (49, 391780), (70, 274246), (76, 252595), (95, 202076), (98, 195890), (133, 144340), (140, 137123), (190, 101038), (196, 97945), (245, 78356), (266, 72170), (380, 50519), (490, 39178), (532, 36085), (665, 28868), (931, 20620), (980, 19589), (1031, 18620), (1330, 14434), (1862, 10310), (2062, 9310), (2660, 7217), (3724, 5155), (4124, 4655)]