208767915

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{409}}^1$

素因数の和:641

約数の個数: 64

約数和(自身を含む): 393600000

約数和(自身を除く): 184832085

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 135, 171, 199, 285, 409, 513, 597, 855, 995, 1227, 1791, 2045, 2565, 2985, 3681, 3781, 5373, 6135, 7771, 8955, 11043, 11343, 18405, 18905, 23313, 26865, 34029, 38855, 55215, 56715, 69939, 81391, 102087, 116565, 170145, 209817, 244173, 349695, 406955, 510435, 732519, 1049085, 1220865, 1546429, 2197557, 3662595, 4639287, 7732145, 10987785, 13917861, 23196435, 41753583, 69589305, 208767915]

約数ペア:

[(1, 208767915), (3, 69589305), (5, 41753583), (9, 23196435), (15, 13917861), (19, 10987785), (27, 7732145), (45, 4639287), (57, 3662595), (95, 2197557), (135, 1546429), (171, 1220865), (199, 1049085), (285, 732519), (409, 510435), (513, 406955), (597, 349695), (855, 244173), (995, 209817), (1227, 170145), (1791, 116565), (2045, 102087), (2565, 81391), (2985, 69939), (3681, 56715), (3781, 55215), (5373, 38855), (6135, 34029), (7771, 26865), (8955, 23313), (11043, 18905), (11343, 18405)]