281859075

素因数分解:

$3^3\times 5^2\times {\mathrm{211}}^1\times {\mathrm{1979}}^1$

素因数の和:2209

約数の個数: 48

約数和(自身を含む): 520502400

約数和(自身を除く): 238643325

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 211, 225, 633, 675, 1055, 1899, 1979, 3165, 5275, 5697, 5937, 9495, 9895, 15825, 17811, 28485, 29685, 47475, 49475, 53433, 89055, 142425, 148425, 267165, 417569, 445275, 1252707, 1335825, 2087845, 3758121, 6263535, 10439225, 11274363, 18790605, 31317675, 56371815, 93953025, 281859075]

約数ペア:

[(1, 281859075), (3, 93953025), (5, 56371815), (9, 31317675), (15, 18790605), (25, 11274363), (27, 10439225), (45, 6263535), (75, 3758121), (135, 2087845), (211, 1335825), (225, 1252707), (633, 445275), (675, 417569), (1055, 267165), (1899, 148425), (1979, 142425), (3165, 89055), (5275, 53433), (5697, 49475), (5937, 47475), (9495, 29685), (9895, 28485), (15825, 17811)]