209438216

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1277}}^1$

素因数の和:1398

約数の個数: 64

約数和(自身を含む): 450878400

約数和(自身を除く): 241440184

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 83, 104, 152, 166, 247, 332, 494, 664, 988, 1079, 1277, 1577, 1976, 2158, 2554, 3154, 4316, 5108, 6308, 8632, 10216, 12616, 16601, 20501, 24263, 33202, 41002, 48526, 66404, 82004, 97052, 105991, 132808, 164008, 194104, 211982, 315419, 423964, 630838, 847928, 1261676, 1377883, 2013829, 2523352, 2755766, 4027658, 5511532, 8055316, 11023064, 16110632, 26179777, 52359554, 104719108, 209438216]

約数ペア:

[(1, 209438216), (2, 104719108), (4, 52359554), (8, 26179777), (13, 16110632), (19, 11023064), (26, 8055316), (38, 5511532), (52, 4027658), (76, 2755766), (83, 2523352), (104, 2013829), (152, 1377883), (166, 1261676), (247, 847928), (332, 630838), (494, 423964), (664, 315419), (988, 211982), (1079, 194104), (1277, 164008), (1577, 132808), (1976, 105991), (2158, 97052), (2554, 82004), (3154, 66404), (4316, 48526), (5108, 41002), (6308, 33202), (8632, 24263), (10216, 20501), (12616, 16601)]