25563512

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{761}}^1$

素因数の和:816

約数の個数: 64

約数和(自身を含む): 57607200

約数和(自身を除く): 32043688

約数列:

[1, 2, 4, 8, 13, 17, 19, 26, 34, 38, 52, 68, 76, 104, 136, 152, 221, 247, 323, 442, 494, 646, 761, 884, 988, 1292, 1522, 1768, 1976, 2584, 3044, 4199, 6088, 8398, 9893, 12937, 14459, 16796, 19786, 25874, 28918, 33592, 39572, 51748, 57836, 79144, 103496, 115672, 168181, 187967, 245803, 336362, 375934, 491606, 672724, 751868, 983212, 1345448, 1503736, 1966424, 3195439, 6390878, 12781756, 25563512]

約数ペア:

[(1, 25563512), (2, 12781756), (4, 6390878), (8, 3195439), (13, 1966424), (17, 1503736), (19, 1345448), (26, 983212), (34, 751868), (38, 672724), (52, 491606), (68, 375934), (76, 336362), (104, 245803), (136, 187967), (152, 168181), (221, 115672), (247, 103496), (323, 79144), (442, 57836), (494, 51748), (646, 39572), (761, 33592), (884, 28918), (988, 25874), (1292, 19786), (1522, 16796), (1768, 14459), (1976, 12937), (2584, 9893), (3044, 8398), (4199, 6088)]