78804540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{683}}^1$

素因数の和:1339

約数の個数: 72

約数和(自身を含む): 239763888

約数和(自身を除く): 160959348

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 641, 683, 1282, 1366, 1923, 2049, 2564, 2732, 3205, 3415, 3846, 4098, 5769, 6147, 6410, 6830, 7692, 8196, 9615, 10245, 11538, 12294, 12820, 13660, 19230, 20490, 23076, 24588, 28845, 30735, 38460, 40980, 57690, 61470, 115380, 122940, 437803, 875606, 1313409, 1751212, 2189015, 2626818, 3940227, 4378030, 5253636, 6567045, 7880454, 8756060, 13134090, 15760908, 19701135, 26268180, 39402270, 78804540]

約数ペア:

[(1, 78804540), (2, 39402270), (3, 26268180), (4, 19701135), (5, 15760908), (6, 13134090), (9, 8756060), (10, 7880454), (12, 6567045), (15, 5253636), (18, 4378030), (20, 3940227), (30, 2626818), (36, 2189015), (45, 1751212), (60, 1313409), (90, 875606), (180, 437803), (641, 122940), (683, 115380), (1282, 61470), (1366, 57690), (1923, 40980), (2049, 38460), (2564, 30735), (2732, 28845), (3205, 24588), (3415, 23076), (3846, 20490), (4098, 19230), (5769, 13660), (6147, 12820), (6410, 12294), (6830, 11538), (7692, 10245), (8196, 9615)]