20098036

素因数分解:

$2^2\times 7^2\times {\mathrm{41}}^2\times {\mathrm{61}}^1$

素因数の和:161

約数の個数: 54

約数和(自身を含む): 42623574

約数和(自身を除く): 22525538

約数列:

[1, 2, 4, 7, 14, 28, 41, 49, 61, 82, 98, 122, 164, 196, 244, 287, 427, 574, 854, 1148, 1681, 1708, 2009, 2501, 2989, 3362, 4018, 5002, 5978, 6724, 8036, 10004, 11767, 11956, 17507, 23534, 35014, 47068, 70028, 82369, 102541, 122549, 164738, 205082, 245098, 329476, 410164, 490196, 717787, 1435574, 2871148, 5024509, 10049018, 20098036]

約数ペア:

[(1, 20098036), (2, 10049018), (4, 5024509), (7, 2871148), (14, 1435574), (28, 717787), (41, 490196), (49, 410164), (61, 329476), (82, 245098), (98, 205082), (122, 164738), (164, 122549), (196, 102541), (244, 82369), (287, 70028), (427, 47068), (574, 35014), (854, 23534), (1148, 17507), (1681, 11956), (1708, 11767), (2009, 10004), (2501, 8036), (2989, 6724), (3362, 5978), (4018, 5002)]