20802516475

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{269}}^1$

素因数の和:497

約数の個数: 96

約数和(自身を含む): 29388744000

約数和(自身を除く): 8586227525

約数列:

[1, 5, 13, 25, 37, 59, 65, 109, 185, 269, 295, 325, 481, 545, 767, 925, 1345, 1417, 1475, 2183, 2405, 2725, 3497, 3835, 4033, 6431, 6725, 7085, 9953, 10915, 12025, 15871, 17485, 19175, 20165, 28379, 29321, 32155, 35425, 49765, 52429, 54575, 79355, 83603, 87425, 100825, 129389, 141895, 146605, 160775, 206323, 237947, 248825, 262145, 381173, 396775, 418015, 587227, 646945, 709475, 733025, 1031615, 1084877, 1189735, 1310725, 1729939, 1905865, 2090075, 2936135, 3093311, 3234725, 5158075, 5424385, 5948675, 7633951, 8649695, 9529325, 14103401, 14680675, 15466555, 22489207, 27121925, 38169755, 43248475, 64007743, 70517005, 77332775, 112446035, 190848775, 320038715, 352585025, 562230175, 832100659, 1600193575, 4160503295, 20802516475]

約数ペア:

[(1, 20802516475), (5, 4160503295), (13, 1600193575), (25, 832100659), (37, 562230175), (59, 352585025), (65, 320038715), (109, 190848775), (185, 112446035), (269, 77332775), (295, 70517005), (325, 64007743), (481, 43248475), (545, 38169755), (767, 27121925), (925, 22489207), (1345, 15466555), (1417, 14680675), (1475, 14103401), (2183, 9529325), (2405, 8649695), (2725, 7633951), (3497, 5948675), (3835, 5424385), (4033, 5158075), (6431, 3234725), (6725, 3093311), (7085, 2936135), (9953, 2090075), (10915, 1905865), (12025, 1729939), (15871, 1310725), (17485, 1189735), (19175, 1084877), (20165, 1031615), (28379, 733025), (29321, 709475), (32155, 646945), (35425, 587227), (49765, 418015), (52429, 396775), (54575, 381173), (79355, 262145), (83603, 248825), (87425, 237947), (100825, 206323), (129389, 160775), (141895, 146605)]