71380720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{311}}^1$

素因数の和:494

約数の個数: 80

約数和(自身を含む): 176417280

約数和(自身を除く): 105036560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 151, 152, 190, 302, 304, 311, 380, 604, 622, 755, 760, 1208, 1244, 1510, 1520, 1555, 2416, 2488, 2869, 3020, 3110, 4976, 5738, 5909, 6040, 6220, 11476, 11818, 12080, 12440, 14345, 22952, 23636, 24880, 28690, 29545, 45904, 46961, 47272, 57380, 59090, 93922, 94544, 114760, 118180, 187844, 229520, 234805, 236360, 375688, 469610, 472720, 751376, 892259, 939220, 1784518, 1878440, 3569036, 3756880, 4461295, 7138072, 8922590, 14276144, 17845180, 35690360, 71380720]

約数ペア:

[(1, 71380720), (2, 35690360), (4, 17845180), (5, 14276144), (8, 8922590), (10, 7138072), (16, 4461295), (19, 3756880), (20, 3569036), (38, 1878440), (40, 1784518), (76, 939220), (80, 892259), (95, 751376), (151, 472720), (152, 469610), (190, 375688), (302, 236360), (304, 234805), (311, 229520), (380, 187844), (604, 118180), (622, 114760), (755, 94544), (760, 93922), (1208, 59090), (1244, 57380), (1510, 47272), (1520, 46961), (1555, 45904), (2416, 29545), (2488, 28690), (2869, 24880), (3020, 23636), (3110, 22952), (4976, 14345), (5738, 12440), (5909, 12080), (6040, 11818), (6220, 11476)]