77840720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{617}}^1$

素因数の和:732

約数の個数: 80

約数和(自身を含む): 193112640

約数和(自身を除く): 115271920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 83, 95, 152, 166, 190, 304, 332, 380, 415, 617, 664, 760, 830, 1234, 1328, 1520, 1577, 1660, 2468, 3085, 3154, 3320, 4936, 6170, 6308, 6640, 7885, 9872, 11723, 12340, 12616, 15770, 23446, 24680, 25232, 31540, 46892, 49360, 51211, 58615, 63080, 93784, 102422, 117230, 126160, 187568, 204844, 234460, 256055, 409688, 468920, 512110, 819376, 937840, 973009, 1024220, 1946018, 2048440, 3892036, 4096880, 4865045, 7784072, 9730090, 15568144, 19460180, 38920360, 77840720]

約数ペア:

[(1, 77840720), (2, 38920360), (4, 19460180), (5, 15568144), (8, 9730090), (10, 7784072), (16, 4865045), (19, 4096880), (20, 3892036), (38, 2048440), (40, 1946018), (76, 1024220), (80, 973009), (83, 937840), (95, 819376), (152, 512110), (166, 468920), (190, 409688), (304, 256055), (332, 234460), (380, 204844), (415, 187568), (617, 126160), (664, 117230), (760, 102422), (830, 93784), (1234, 63080), (1328, 58615), (1520, 51211), (1577, 49360), (1660, 46892), (2468, 31540), (3085, 25232), (3154, 24680), (3320, 23446), (4936, 15770), (6170, 12616), (6308, 12340), (6640, 11723), (7885, 9872)]