81520095

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^2\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 138446496

約数和(自身を除く): 56926401

約数列:

[1, 3, 5, 15, 41, 53, 61, 123, 159, 183, 205, 265, 305, 615, 795, 915, 1681, 2173, 2501, 3233, 5043, 6519, 7503, 8405, 9699, 10865, 12505, 16165, 25215, 32595, 37515, 48495, 89093, 102541, 132553, 267279, 307623, 397659, 445465, 512705, 662765, 1336395, 1538115, 1988295, 5434673, 16304019, 27173365, 81520095]

約数ペア:

[(1, 81520095), (3, 27173365), (5, 16304019), (15, 5434673), (41, 1988295), (53, 1538115), (61, 1336395), (123, 662765), (159, 512705), (183, 445465), (205, 397659), (265, 307623), (305, 267279), (615, 132553), (795, 102541), (915, 89093), (1681, 48495), (2173, 37515), (2501, 32595), (3233, 25215), (5043, 16165), (6519, 12505), (7503, 10865), (8405, 9699)]