54890780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{709}}^1$

素因数の和:811

約数の個数: 72

約数和(自身を含む): 135979200

約数和(自身を除く): 81088420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 79, 98, 140, 158, 196, 245, 316, 395, 490, 553, 709, 790, 980, 1106, 1418, 1580, 2212, 2765, 2836, 3545, 3871, 4963, 5530, 7090, 7742, 9926, 11060, 14180, 15484, 19355, 19852, 24815, 34741, 38710, 49630, 56011, 69482, 77420, 99260, 112022, 138964, 173705, 224044, 280055, 347410, 392077, 560110, 694820, 784154, 1120220, 1568308, 1960385, 2744539, 3920770, 5489078, 7841540, 10978156, 13722695, 27445390, 54890780]

約数ペア:

[(1, 54890780), (2, 27445390), (4, 13722695), (5, 10978156), (7, 7841540), (10, 5489078), (14, 3920770), (20, 2744539), (28, 1960385), (35, 1568308), (49, 1120220), (70, 784154), (79, 694820), (98, 560110), (140, 392077), (158, 347410), (196, 280055), (245, 224044), (316, 173705), (395, 138964), (490, 112022), (553, 99260), (709, 77420), (790, 69482), (980, 56011), (1106, 49630), (1418, 38710), (1580, 34741), (2212, 24815), (2765, 19852), (2836, 19355), (3545, 15484), (3871, 14180), (4963, 11060), (5530, 9926), (7090, 7742)]