78191920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{769}}^1$

素因数の和:854

約数の個数: 80

約数和(自身を含む): 192487680

約数和(自身を除く): 114295760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 41, 62, 80, 82, 124, 155, 164, 205, 248, 310, 328, 410, 496, 620, 656, 769, 820, 1240, 1271, 1538, 1640, 2480, 2542, 3076, 3280, 3845, 5084, 6152, 6355, 7690, 10168, 12304, 12710, 15380, 20336, 23839, 25420, 30760, 31529, 47678, 50840, 61520, 63058, 95356, 101680, 119195, 126116, 157645, 190712, 238390, 252232, 315290, 381424, 476780, 504464, 630580, 953560, 977399, 1261160, 1907120, 1954798, 2522320, 3909596, 4886995, 7819192, 9773990, 15638384, 19547980, 39095960, 78191920]

約数ペア:

[(1, 78191920), (2, 39095960), (4, 19547980), (5, 15638384), (8, 9773990), (10, 7819192), (16, 4886995), (20, 3909596), (31, 2522320), (40, 1954798), (41, 1907120), (62, 1261160), (80, 977399), (82, 953560), (124, 630580), (155, 504464), (164, 476780), (205, 381424), (248, 315290), (310, 252232), (328, 238390), (410, 190712), (496, 157645), (620, 126116), (656, 119195), (769, 101680), (820, 95356), (1240, 63058), (1271, 61520), (1538, 50840), (1640, 47678), (2480, 31529), (2542, 30760), (3076, 25420), (3280, 23839), (3845, 20336), (5084, 15380), (6152, 12710), (6355, 12304), (7690, 10168)]