20412308

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:145

約数の個数: 96

約数和(自身を含む): 47496960

約数和(自身を除く): 27084652

約数列:

[1, 2, 4, 7, 14, 17, 19, 28, 34, 37, 38, 61, 68, 74, 76, 119, 122, 133, 148, 238, 244, 259, 266, 323, 427, 476, 518, 532, 629, 646, 703, 854, 1036, 1037, 1159, 1258, 1292, 1406, 1708, 2074, 2257, 2261, 2318, 2516, 2812, 4148, 4403, 4514, 4522, 4636, 4921, 7259, 8113, 8806, 9028, 9044, 9842, 11951, 14518, 15799, 16226, 17612, 19684, 19703, 23902, 29036, 31598, 32452, 38369, 39406, 42883, 47804, 63196, 76738, 78812, 83657, 85766, 137921, 153476, 167314, 171532, 268583, 275842, 300181, 334628, 537166, 551684, 600362, 729011, 1074332, 1200724, 1458022, 2916044, 5103077, 10206154, 20412308]

約数ペア:

[(1, 20412308), (2, 10206154), (4, 5103077), (7, 2916044), (14, 1458022), (17, 1200724), (19, 1074332), (28, 729011), (34, 600362), (37, 551684), (38, 537166), (61, 334628), (68, 300181), (74, 275842), (76, 268583), (119, 171532), (122, 167314), (133, 153476), (148, 137921), (238, 85766), (244, 83657), (259, 78812), (266, 76738), (323, 63196), (427, 47804), (476, 42883), (518, 39406), (532, 38369), (629, 32452), (646, 31598), (703, 29036), (854, 23902), (1036, 19703), (1037, 19684), (1159, 17612), (1258, 16226), (1292, 15799), (1406, 14518), (1708, 11951), (2074, 9842), (2257, 9044), (2261, 9028), (2318, 8806), (2516, 8113), (2812, 7259), (4148, 4921), (4403, 4636), (4514, 4522)]