18284220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{647}}^1$

素因数の和:819

約数の個数: 72

約数和(自身を含む): 55901664

約数和(自身を除く): 37617444

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 157, 180, 314, 471, 628, 647, 785, 942, 1294, 1413, 1570, 1884, 1941, 2355, 2588, 2826, 3140, 3235, 3882, 4710, 5652, 5823, 6470, 7065, 7764, 9420, 9705, 11646, 12940, 14130, 19410, 23292, 28260, 29115, 38820, 58230, 101579, 116460, 203158, 304737, 406316, 507895, 609474, 914211, 1015790, 1218948, 1523685, 1828422, 2031580, 3047370, 3656844, 4571055, 6094740, 9142110, 18284220]

約数ペア:

[(1, 18284220), (2, 9142110), (3, 6094740), (4, 4571055), (5, 3656844), (6, 3047370), (9, 2031580), (10, 1828422), (12, 1523685), (15, 1218948), (18, 1015790), (20, 914211), (30, 609474), (36, 507895), (45, 406316), (60, 304737), (90, 203158), (157, 116460), (180, 101579), (314, 58230), (471, 38820), (628, 29115), (647, 28260), (785, 23292), (942, 19410), (1294, 14130), (1413, 12940), (1570, 11646), (1884, 9705), (1941, 9420), (2355, 7764), (2588, 7065), (2826, 6470), (3140, 5823), (3235, 5652), (3882, 4710)]