1916481780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{947}}^1\times {\mathrm{11243}}^1$

素因数の和:12205

約数の個数: 72

約数和(自身を含む): 5819984352

約数和(自身を除く): 3903502572

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 947, 1894, 2841, 3788, 4735, 5682, 8523, 9470, 11243, 11364, 14205, 17046, 18940, 22486, 28410, 33729, 34092, 42615, 44972, 56215, 56820, 67458, 85230, 101187, 112430, 134916, 168645, 170460, 202374, 224860, 337290, 404748, 505935, 674580, 1011870, 2023740, 10647121, 21294242, 31941363, 42588484, 53235605, 63882726, 95824089, 106471210, 127765452, 159706815, 191648178, 212942420, 319413630, 383296356, 479120445, 638827260, 958240890, 1916481780]

約数ペア:

[(1, 1916481780), (2, 958240890), (3, 638827260), (4, 479120445), (5, 383296356), (6, 319413630), (9, 212942420), (10, 191648178), (12, 159706815), (15, 127765452), (18, 106471210), (20, 95824089), (30, 63882726), (36, 53235605), (45, 42588484), (60, 31941363), (90, 21294242), (180, 10647121), (947, 2023740), (1894, 1011870), (2841, 674580), (3788, 505935), (4735, 404748), (5682, 337290), (8523, 224860), (9470, 202374), (11243, 170460), (11364, 168645), (14205, 134916), (17046, 112430), (18940, 101187), (22486, 85230), (28410, 67458), (33729, 56820), (34092, 56215), (42615, 44972)]