27931085

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 45868032

約数和(自身を除く): 17936947

約数列:

[1, 5, 7, 13, 17, 23, 35, 65, 85, 91, 115, 119, 157, 161, 221, 299, 391, 455, 595, 785, 805, 1099, 1105, 1495, 1547, 1955, 2041, 2093, 2669, 2737, 3611, 5083, 5495, 7735, 10205, 10465, 13345, 13685, 14287, 18055, 18683, 25277, 25415, 34697, 35581, 46943, 61387, 71435, 93415, 126385, 173485, 177905, 234715, 242879, 306935, 328601, 429709, 798031, 1214395, 1643005, 2148545, 3990155, 5586217, 27931085]

約数ペア:

[(1, 27931085), (5, 5586217), (7, 3990155), (13, 2148545), (17, 1643005), (23, 1214395), (35, 798031), (65, 429709), (85, 328601), (91, 306935), (115, 242879), (119, 234715), (157, 177905), (161, 173485), (221, 126385), (299, 93415), (391, 71435), (455, 61387), (595, 46943), (785, 35581), (805, 34697), (1099, 25415), (1105, 25277), (1495, 18683), (1547, 18055), (1955, 14287), (2041, 13685), (2093, 13345), (2669, 10465), (2737, 10205), (3611, 7735), (5083, 5495)]