245026418

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{317}}^1$

素因数の和:507

約数の個数: 64

約数和(自身を含む): 471840768

約数和(自身を除く): 226814350

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 91, 137, 182, 217, 274, 317, 403, 434, 634, 806, 959, 1781, 1918, 2219, 2821, 3562, 4121, 4247, 4438, 5642, 8242, 8494, 9827, 12467, 19654, 24934, 28847, 29729, 43429, 55211, 57694, 59458, 68789, 86858, 110422, 127751, 137578, 255502, 304003, 386477, 564577, 608006, 772954, 894257, 1129154, 1346299, 1788514, 2692598, 3952039, 7904078, 9424093, 17501887, 18848186, 35003774, 122513209, 245026418]

約数ペア:

[(1, 245026418), (2, 122513209), (7, 35003774), (13, 18848186), (14, 17501887), (26, 9424093), (31, 7904078), (62, 3952039), (91, 2692598), (137, 1788514), (182, 1346299), (217, 1129154), (274, 894257), (317, 772954), (403, 608006), (434, 564577), (634, 386477), (806, 304003), (959, 255502), (1781, 137578), (1918, 127751), (2219, 110422), (2821, 86858), (3562, 68789), (4121, 59458), (4247, 57694), (4438, 55211), (5642, 43429), (8242, 29729), (8494, 28847), (9827, 24934), (12467, 19654)]