19282720

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6343}}^1$

素因数の和:6377

約数の個数: 48

約数和(自身を含む): 47960640

約数和(自身を除く): 28677920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 6343, 12686, 25372, 31715, 50744, 63430, 101488, 120517, 126860, 202976, 241034, 253720, 482068, 507440, 602585, 964136, 1014880, 1205170, 1928272, 2410340, 3856544, 4820680, 9641360, 19282720]

約数ペア:

[(1, 19282720), (2, 9641360), (4, 4820680), (5, 3856544), (8, 2410340), (10, 1928272), (16, 1205170), (19, 1014880), (20, 964136), (32, 602585), (38, 507440), (40, 482068), (76, 253720), (80, 241034), (95, 202976), (152, 126860), (160, 120517), (190, 101488), (304, 63430), (380, 50744), (608, 31715), (760, 25372), (1520, 12686), (3040, 6343)]