212620165

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:194

約数の個数: 64

約数和(自身を含む): 300072960

約数和(自身を除く): 87452795

約数列:

[1, 5, 19, 23, 31, 43, 73, 95, 115, 155, 215, 365, 437, 589, 713, 817, 989, 1333, 1387, 1679, 2185, 2263, 2945, 3139, 3565, 4085, 4945, 6665, 6935, 8395, 11315, 13547, 15695, 18791, 25327, 30659, 31901, 42997, 52049, 59641, 67735, 72197, 93955, 97309, 126635, 153295, 159505, 214985, 260245, 298205, 360985, 486545, 582521, 988931, 1371743, 1848871, 2238107, 2912605, 4944655, 6858715, 9244355, 11190535, 42524033, 212620165]

約数ペア:

[(1, 212620165), (5, 42524033), (19, 11190535), (23, 9244355), (31, 6858715), (43, 4944655), (73, 2912605), (95, 2238107), (115, 1848871), (155, 1371743), (215, 988931), (365, 582521), (437, 486545), (589, 360985), (713, 298205), (817, 260245), (989, 214985), (1333, 159505), (1387, 153295), (1679, 126635), (2185, 97309), (2263, 93955), (2945, 72197), (3139, 67735), (3565, 59641), (4085, 52049), (4945, 42997), (6665, 31901), (6935, 30659), (8395, 25327), (11315, 18791), (13547, 15695)]