1978380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{379}}^1$

素因数の和:423

約数の個数: 72

約数和(自身を含む): 6224400

約数和(自身を除く): 4246020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 348, 379, 435, 522, 580, 758, 870, 1044, 1137, 1305, 1516, 1740, 1895, 2274, 2610, 3411, 3790, 4548, 5220, 5685, 6822, 7580, 10991, 11370, 13644, 17055, 21982, 22740, 32973, 34110, 43964, 54955, 65946, 68220, 98919, 109910, 131892, 164865, 197838, 219820, 329730, 395676, 494595, 659460, 989190, 1978380]

約数ペア:

[(1, 1978380), (2, 989190), (3, 659460), (4, 494595), (5, 395676), (6, 329730), (9, 219820), (10, 197838), (12, 164865), (15, 131892), (18, 109910), (20, 98919), (29, 68220), (30, 65946), (36, 54955), (45, 43964), (58, 34110), (60, 32973), (87, 22740), (90, 21982), (116, 17055), (145, 13644), (174, 11370), (180, 10991), (261, 7580), (290, 6822), (348, 5685), (379, 5220), (435, 4548), (522, 3790), (580, 3411), (758, 2610), (870, 2274), (1044, 1895), (1137, 1740), (1305, 1516)]