890820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{101}}^1$

素因数の和:130

約数の個数: 108

約数和(自身を含む): 3174444

約数和(自身を除く): 2283624

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, 101, 105, 126, 140, 147, 180, 196, 202, 210, 245, 252, 294, 303, 315, 404, 420, 441, 490, 505, 588, 606, 630, 707, 735, 882, 909, 980, 1010, 1212, 1260, 1414, 1470, 1515, 1764, 1818, 2020, 2121, 2205, 2828, 2940, 3030, 3535, 3636, 4242, 4410, 4545, 4949, 6060, 6363, 7070, 8484, 8820, 9090, 9898, 10605, 12726, 14140, 14847, 18180, 19796, 21210, 24745, 25452, 29694, 31815, 42420, 44541, 49490, 59388, 63630, 74235, 89082, 98980, 127260, 148470, 178164, 222705, 296940, 445410, 890820]

約数ペア:

[(1, 890820), (2, 445410), (3, 296940), (4, 222705), (5, 178164), (6, 148470), (7, 127260), (9, 98980), (10, 89082), (12, 74235), (14, 63630), (15, 59388), (18, 49490), (20, 44541), (21, 42420), (28, 31815), (30, 29694), (35, 25452), (36, 24745), (42, 21210), (45, 19796), (49, 18180), (60, 14847), (63, 14140), (70, 12726), (84, 10605), (90, 9898), (98, 9090), (101, 8820), (105, 8484), (126, 7070), (140, 6363), (147, 6060), (180, 4949), (196, 4545), (202, 4410), (210, 4242), (245, 3636), (252, 3535), (294, 3030), (303, 2940), (315, 2828), (404, 2205), (420, 2121), (441, 2020), (490, 1818), (505, 1764), (588, 1515), (606, 1470), (630, 1414), (707, 1260), (735, 1212), (882, 1010), (909, 980)]