81382140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{9227}}^1$

素因数の和:9256

約数の個数: 108

約数和(自身を含む): 287193816

約数和(自身を除く): 205811676

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2940, 4410, 8820, 9227, 18454, 27681, 36908, 46135, 55362, 64589, 83043, 92270, 110724, 129178, 138405, 166086, 184540, 193767, 258356, 276810, 322945, 332172, 387534, 415215, 452123, 553620, 581301, 645890, 775068, 830430, 904246, 968835, 1162602, 1291780, 1356369, 1660860, 1808492, 1937670, 2260615, 2325204, 2712738, 2906505, 3875340, 4069107, 4521230, 5425476, 5813010, 6781845, 8138214, 9042460, 11626020, 13563690, 16276428, 20345535, 27127380, 40691070, 81382140]

約数ペア:

[(1, 81382140), (2, 40691070), (3, 27127380), (4, 20345535), (5, 16276428), (6, 13563690), (7, 11626020), (9, 9042460), (10, 8138214), (12, 6781845), (14, 5813010), (15, 5425476), (18, 4521230), (20, 4069107), (21, 3875340), (28, 2906505), (30, 2712738), (35, 2325204), (36, 2260615), (42, 1937670), (45, 1808492), (49, 1660860), (60, 1356369), (63, 1291780), (70, 1162602), (84, 968835), (90, 904246), (98, 830430), (105, 775068), (126, 645890), (140, 581301), (147, 553620), (180, 452123), (196, 415215), (210, 387534), (245, 332172), (252, 322945), (294, 276810), (315, 258356), (420, 193767), (441, 184540), (490, 166086), (588, 138405), (630, 129178), (735, 110724), (882, 92270), (980, 83043), (1260, 64589), (1470, 55362), (1764, 46135), (2205, 36908), (2940, 27681), (4410, 18454), (8820, 9227)]