347826388

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{2647}}^1$

素因数の和:2709

約数の個数: 72

約数和(自身を含む): 790968192

約数和(自身を除く): 443141804

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 38, 52, 76, 91, 133, 182, 247, 266, 361, 364, 494, 532, 722, 988, 1444, 1729, 2527, 2647, 3458, 4693, 5054, 5294, 6916, 9386, 10108, 10588, 18529, 18772, 32851, 34411, 37058, 50293, 65702, 68822, 74116, 100586, 131404, 137644, 201172, 240877, 352051, 481754, 653809, 704102, 955567, 963508, 1307618, 1408204, 1911134, 2615236, 3822268, 4576663, 6688969, 9153326, 12422371, 13377938, 18306652, 24844742, 26755876, 49689484, 86956597, 173913194, 347826388]

約数ペア:

[(1, 347826388), (2, 173913194), (4, 86956597), (7, 49689484), (13, 26755876), (14, 24844742), (19, 18306652), (26, 13377938), (28, 12422371), (38, 9153326), (52, 6688969), (76, 4576663), (91, 3822268), (133, 2615236), (182, 1911134), (247, 1408204), (266, 1307618), (361, 963508), (364, 955567), (494, 704102), (532, 653809), (722, 481754), (988, 352051), (1444, 240877), (1729, 201172), (2527, 137644), (2647, 131404), (3458, 100586), (4693, 74116), (5054, 68822), (5294, 65702), (6916, 50293), (9386, 37058), (10108, 34411), (10588, 32851), (18529, 18772)]