18784620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1321}}^1$

素因数の和:1415

約数の個数: 72

約数和(自身を含む): 57744960

約数和(自身を除く): 38960340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 79, 90, 158, 180, 237, 316, 395, 474, 711, 790, 948, 1185, 1321, 1422, 1580, 2370, 2642, 2844, 3555, 3963, 4740, 5284, 6605, 7110, 7926, 11889, 13210, 14220, 15852, 19815, 23778, 26420, 39630, 47556, 59445, 79260, 104359, 118890, 208718, 237780, 313077, 417436, 521795, 626154, 939231, 1043590, 1252308, 1565385, 1878462, 2087180, 3130770, 3756924, 4696155, 6261540, 9392310, 18784620]

約数ペア:

[(1, 18784620), (2, 9392310), (3, 6261540), (4, 4696155), (5, 3756924), (6, 3130770), (9, 2087180), (10, 1878462), (12, 1565385), (15, 1252308), (18, 1043590), (20, 939231), (30, 626154), (36, 521795), (45, 417436), (60, 313077), (79, 237780), (90, 208718), (158, 118890), (180, 104359), (237, 79260), (316, 59445), (395, 47556), (474, 39630), (711, 26420), (790, 23778), (948, 19815), (1185, 15852), (1321, 14220), (1422, 13210), (1580, 11889), (2370, 7926), (2642, 7110), (2844, 6605), (3555, 5284), (3963, 4740)]