65415556

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{541}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 126871360

約数和(自身を除く): 61455804

約数列:

[1, 2, 4, 19, 37, 38, 43, 74, 76, 86, 148, 172, 541, 703, 817, 1082, 1406, 1591, 1634, 2164, 2812, 3182, 3268, 6364, 10279, 20017, 20558, 23263, 30229, 40034, 41116, 46526, 60458, 80068, 93052, 120916, 380323, 441997, 760646, 860731, 883994, 1521292, 1721462, 1767988, 3442924, 16353889, 32707778, 65415556]

約数ペア:

[(1, 65415556), (2, 32707778), (4, 16353889), (19, 3442924), (37, 1767988), (38, 1721462), (43, 1521292), (74, 883994), (76, 860731), (86, 760646), (148, 441997), (172, 380323), (541, 120916), (703, 93052), (817, 80068), (1082, 60458), (1406, 46526), (1591, 41116), (1634, 40034), (2164, 30229), (2812, 23263), (3182, 20558), (3268, 20017), (6364, 10279)]