19925680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{13109}}^1$

素因数の和:13141

約数の個数: 40

約数和(自身を含む): 48769200

約数和(自身を除く): 28843520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 13109, 26218, 52436, 65545, 104872, 131090, 209744, 249071, 262180, 498142, 524360, 996284, 1048720, 1245355, 1992568, 2490710, 3985136, 4981420, 9962840, 19925680]

約数ペア:

[(1, 19925680), (2, 9962840), (4, 4981420), (5, 3985136), (8, 2490710), (10, 1992568), (16, 1245355), (19, 1048720), (20, 996284), (38, 524360), (40, 498142), (76, 262180), (80, 249071), (95, 209744), (152, 131090), (190, 104872), (304, 65545), (380, 52436), (760, 26218), (1520, 13109)]