1997136645

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{16411}}^1$

素因数の和:16506

約数の個数: 64

約数和(自身を含む): 3907368960

約数和(自身を除く): 1910232315

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 61, 95, 105, 133, 183, 285, 305, 399, 427, 665, 915, 1159, 1281, 1995, 2135, 3477, 5795, 6405, 8113, 16411, 17385, 24339, 40565, 49233, 82055, 114877, 121695, 246165, 311809, 344631, 574385, 935427, 1001071, 1559045, 1723155, 2182663, 3003213, 4677135, 5005355, 6547989, 7007497, 10913315, 15016065, 19020349, 21022491, 32739945, 35037485, 57061047, 95101745, 105112455, 133142443, 285305235, 399427329, 665712215, 1997136645]

約数ペア:

[(1, 1997136645), (3, 665712215), (5, 399427329), (7, 285305235), (15, 133142443), (19, 105112455), (21, 95101745), (35, 57061047), (57, 35037485), (61, 32739945), (95, 21022491), (105, 19020349), (133, 15016065), (183, 10913315), (285, 7007497), (305, 6547989), (399, 5005355), (427, 4677135), (665, 3003213), (915, 2182663), (1159, 1723155), (1281, 1559045), (1995, 1001071), (2135, 935427), (3477, 574385), (5795, 344631), (6405, 311809), (8113, 246165), (16411, 121695), (17385, 114877), (24339, 82055), (40565, 49233)]