155695640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{521}}^1$

素因数の和:804

約数の個数: 64

約数和(自身を含む): 363813120

約数和(自身を除く): 208117480

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 241, 248, 310, 482, 521, 620, 964, 1042, 1205, 1240, 1928, 2084, 2410, 2605, 4168, 4820, 5210, 7471, 9640, 10420, 14942, 16151, 20840, 29884, 32302, 37355, 59768, 64604, 74710, 80755, 125561, 129208, 149420, 161510, 251122, 298840, 323020, 502244, 627805, 646040, 1004488, 1255610, 2511220, 3892391, 5022440, 7784782, 15569564, 19461955, 31139128, 38923910, 77847820, 155695640]

約数ペア:

[(1, 155695640), (2, 77847820), (4, 38923910), (5, 31139128), (8, 19461955), (10, 15569564), (20, 7784782), (31, 5022440), (40, 3892391), (62, 2511220), (124, 1255610), (155, 1004488), (241, 646040), (248, 627805), (310, 502244), (482, 323020), (521, 298840), (620, 251122), (964, 161510), (1042, 149420), (1205, 129208), (1240, 125561), (1928, 80755), (2084, 74710), (2410, 64604), (2605, 59768), (4168, 37355), (4820, 32302), (5210, 29884), (7471, 20840), (9640, 16151), (10420, 14942)]