205009785

素因数分解:

$3^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{13681}}^1$

素因数の和:13735

約数の個数: 40

約数和(自身を含む): 377459016

約数和(自身を除く): 172449231

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 81, 111, 135, 185, 333, 405, 555, 999, 1665, 2997, 4995, 13681, 14985, 41043, 68405, 123129, 205215, 369387, 506197, 615645, 1108161, 1518591, 1846935, 2530985, 4555773, 5540805, 7592955, 13667319, 22778865, 41001957, 68336595, 205009785]

約数ペア:

[(1, 205009785), (3, 68336595), (5, 41001957), (9, 22778865), (15, 13667319), (27, 7592955), (37, 5540805), (45, 4555773), (81, 2530985), (111, 1846935), (135, 1518591), (185, 1108161), (333, 615645), (405, 506197), (555, 369387), (999, 205215), (1665, 123129), (2997, 68405), (4995, 41043), (13681, 14985)]