19565440

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1609}}^1$

素因数の和:1647

約数の個数: 64

約数和(自身を含む): 49266000

約数和(自身を除く): 29700560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 304, 320, 380, 608, 640, 760, 1216, 1520, 1609, 2432, 3040, 3218, 6080, 6436, 8045, 12160, 12872, 16090, 25744, 30571, 32180, 51488, 61142, 64360, 102976, 122284, 128720, 152855, 205952, 244568, 257440, 305710, 489136, 514880, 611420, 978272, 1029760, 1222840, 1956544, 2445680, 3913088, 4891360, 9782720, 19565440]

約数ペア:

[(1, 19565440), (2, 9782720), (4, 4891360), (5, 3913088), (8, 2445680), (10, 1956544), (16, 1222840), (19, 1029760), (20, 978272), (32, 611420), (38, 514880), (40, 489136), (64, 305710), (76, 257440), (80, 244568), (95, 205952), (128, 152855), (152, 128720), (160, 122284), (190, 102976), (304, 64360), (320, 61142), (380, 51488), (608, 32180), (640, 30571), (760, 25744), (1216, 16090), (1520, 12872), (1609, 12160), (2432, 8045), (3040, 6436), (3218, 6080)]