664759823

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:241

約数の個数: 72

約数和(自身を含む): 928986912

約数和(自身を除く): 264227089

約数列:

[1, 7, 13, 17, 23, 49, 91, 119, 157, 161, 221, 289, 299, 391, 637, 833, 1099, 1127, 1547, 2023, 2041, 2093, 2669, 2737, 3611, 3757, 5083, 6647, 7693, 10829, 14161, 14287, 14651, 18683, 19159, 25277, 26299, 34697, 35581, 45373, 46529, 46943, 61387, 86411, 100009, 130781, 176939, 184093, 242879, 249067, 317611, 325703, 328601, 429709, 589849, 604877, 798031, 1043579, 1700153, 2223277, 2300207, 3007963, 4128943, 4234139, 5586217, 7305053, 13566527, 28902601, 39103519, 51135371, 94965689, 664759823]

約数ペア:

[(1, 664759823), (7, 94965689), (13, 51135371), (17, 39103519), (23, 28902601), (49, 13566527), (91, 7305053), (119, 5586217), (157, 4234139), (161, 4128943), (221, 3007963), (289, 2300207), (299, 2223277), (391, 1700153), (637, 1043579), (833, 798031), (1099, 604877), (1127, 589849), (1547, 429709), (2023, 328601), (2041, 325703), (2093, 317611), (2669, 249067), (2737, 242879), (3611, 184093), (3757, 176939), (5083, 130781), (6647, 100009), (7693, 86411), (10829, 61387), (14161, 46943), (14287, 46529), (14651, 45373), (18683, 35581), (19159, 34697), (25277, 26299)]