31218824

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:143

約数の個数: 128

約数和(自身を含む): 79161600

約数和(自身を除く): 47942776

約数列:

[1, 2, 4, 7, 8, 13, 14, 19, 26, 28, 37, 38, 52, 56, 61, 74, 76, 91, 104, 122, 133, 148, 152, 182, 244, 247, 259, 266, 296, 364, 427, 481, 488, 494, 518, 532, 703, 728, 793, 854, 962, 988, 1036, 1064, 1159, 1406, 1586, 1708, 1729, 1924, 1976, 2072, 2257, 2318, 2812, 3172, 3367, 3416, 3458, 3848, 4514, 4636, 4921, 5551, 5624, 6344, 6734, 6916, 8113, 9028, 9139, 9272, 9842, 11102, 13468, 13832, 15067, 15799, 16226, 18056, 18278, 19684, 22204, 26936, 29341, 30134, 31598, 32452, 36556, 39368, 42883, 44408, 58682, 60268, 63196, 63973, 64904, 73112, 85766, 105469, 117364, 120536, 126392, 127946, 171532, 205387, 210938, 234728, 255892, 300181, 343064, 410774, 421876, 511784, 557479, 600362, 821548, 843752, 1114958, 1200724, 1643096, 2229916, 2401448, 3902353, 4459832, 7804706, 15609412, 31218824]

約数ペア:

[(1, 31218824), (2, 15609412), (4, 7804706), (7, 4459832), (8, 3902353), (13, 2401448), (14, 2229916), (19, 1643096), (26, 1200724), (28, 1114958), (37, 843752), (38, 821548), (52, 600362), (56, 557479), (61, 511784), (74, 421876), (76, 410774), (91, 343064), (104, 300181), (122, 255892), (133, 234728), (148, 210938), (152, 205387), (182, 171532), (244, 127946), (247, 126392), (259, 120536), (266, 117364), (296, 105469), (364, 85766), (427, 73112), (481, 64904), (488, 63973), (494, 63196), (518, 60268), (532, 58682), (703, 44408), (728, 42883), (793, 39368), (854, 36556), (962, 32452), (988, 31598), (1036, 30134), (1064, 29341), (1159, 26936), (1406, 22204), (1586, 19684), (1708, 18278), (1729, 18056), (1924, 16226), (1976, 15799), (2072, 15067), (2257, 13832), (2318, 13468), (2812, 11102), (3172, 9842), (3367, 9272), (3416, 9139), (3458, 9028), (3848, 8113), (4514, 6916), (4636, 6734), (4921, 6344), (5551, 5624)]