642630915

素因数分解:

$3^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{36901}}^1$

素因数の和:36961

約数の個数: 40

約数和(自身を含む): 1178797488

約数和(自身を除く): 536166573

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 81, 129, 135, 215, 387, 405, 645, 1161, 1935, 3483, 5805, 17415, 36901, 110703, 184505, 332109, 553515, 996327, 1586743, 1660545, 2988981, 4760229, 4981635, 7933715, 14280687, 14944905, 23801145, 42842061, 71403435, 128526183, 214210305, 642630915]

約数ペア:

[(1, 642630915), (3, 214210305), (5, 128526183), (9, 71403435), (15, 42842061), (27, 23801145), (43, 14944905), (45, 14280687), (81, 7933715), (129, 4981635), (135, 4760229), (215, 2988981), (387, 1660545), (405, 1586743), (645, 996327), (1161, 553515), (1935, 332109), (3483, 184505), (5805, 110703), (17415, 36901)]