81925720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{373}}^1$

素因数の和:437

約数の個数: 96

約数和(自身を含む): 206672400

約数和(自身を除く): 124746680

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 289, 323, 340, 373, 380, 578, 646, 680, 746, 760, 1156, 1292, 1445, 1492, 1615, 1865, 2312, 2584, 2890, 2984, 3230, 3730, 5491, 5780, 6341, 6460, 7087, 7460, 10982, 11560, 12682, 12920, 14174, 14920, 21964, 25364, 27455, 28348, 31705, 35435, 43928, 50728, 54910, 56696, 63410, 70870, 107797, 109820, 120479, 126820, 141740, 215594, 219640, 240958, 253640, 283480, 431188, 481916, 538985, 602395, 862376, 963832, 1077970, 1204790, 2048143, 2155940, 2409580, 4096286, 4311880, 4819160, 8192572, 10240715, 16385144, 20481430, 40962860, 81925720]

約数ペア:

[(1, 81925720), (2, 40962860), (4, 20481430), (5, 16385144), (8, 10240715), (10, 8192572), (17, 4819160), (19, 4311880), (20, 4096286), (34, 2409580), (38, 2155940), (40, 2048143), (68, 1204790), (76, 1077970), (85, 963832), (95, 862376), (136, 602395), (152, 538985), (170, 481916), (190, 431188), (289, 283480), (323, 253640), (340, 240958), (373, 219640), (380, 215594), (578, 141740), (646, 126820), (680, 120479), (746, 109820), (760, 107797), (1156, 70870), (1292, 63410), (1445, 56696), (1492, 54910), (1615, 50728), (1865, 43928), (2312, 35435), (2584, 31705), (2890, 28348), (2984, 27455), (3230, 25364), (3730, 21964), (5491, 14920), (5780, 14174), (6341, 12920), (6460, 12682), (7087, 11560), (7460, 10982)]