307720580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{19751}}^1$

素因数の和:19820

約数の個数: 48

約数和(自身を含む): 696850560

約数和(自身を除く): 389129980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 1558, 3116, 3895, 7790, 15580, 19751, 39502, 79004, 98755, 197510, 375269, 395020, 750538, 809791, 1501076, 1619582, 1876345, 3239164, 3752690, 4048955, 7505380, 8097910, 15386029, 16195820, 30772058, 61544116, 76930145, 153860290, 307720580]

約数ペア:

[(1, 307720580), (2, 153860290), (4, 76930145), (5, 61544116), (10, 30772058), (19, 16195820), (20, 15386029), (38, 8097910), (41, 7505380), (76, 4048955), (82, 3752690), (95, 3239164), (164, 1876345), (190, 1619582), (205, 1501076), (380, 809791), (410, 750538), (779, 395020), (820, 375269), (1558, 197510), (3116, 98755), (3895, 79004), (7790, 39502), (15580, 19751)]