20583540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{661}}^1$

素因数の和:849

約数の個数: 72

約数和(自身を含む): 62892648

約数和(自身を除く): 42309108

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 173, 180, 346, 519, 661, 692, 865, 1038, 1322, 1557, 1730, 1983, 2076, 2595, 2644, 3114, 3305, 3460, 3966, 5190, 5949, 6228, 6610, 7785, 7932, 9915, 10380, 11898, 13220, 15570, 19830, 23796, 29745, 31140, 39660, 59490, 114353, 118980, 228706, 343059, 457412, 571765, 686118, 1029177, 1143530, 1372236, 1715295, 2058354, 2287060, 3430590, 4116708, 5145885, 6861180, 10291770, 20583540]

約数ペア:

[(1, 20583540), (2, 10291770), (3, 6861180), (4, 5145885), (5, 4116708), (6, 3430590), (9, 2287060), (10, 2058354), (12, 1715295), (15, 1372236), (18, 1143530), (20, 1029177), (30, 686118), (36, 571765), (45, 457412), (60, 343059), (90, 228706), (173, 118980), (180, 114353), (346, 59490), (519, 39660), (661, 31140), (692, 29745), (865, 23796), (1038, 19830), (1322, 15570), (1557, 13220), (1730, 11898), (1983, 10380), (2076, 9915), (2595, 7932), (2644, 7785), (3114, 6610), (3305, 6228), (3460, 5949), (3966, 5190)]