321729128

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{4957}}^1$

素因数の和:5050

約数の個数: 64

約数和(自身を含む): 737750400

約数和(自身を除く): 416021272

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 61, 76, 122, 133, 152, 244, 266, 427, 488, 532, 854, 1064, 1159, 1708, 2318, 3416, 4636, 4957, 8113, 9272, 9914, 16226, 19828, 32452, 34699, 39656, 64904, 69398, 94183, 138796, 188366, 277592, 302377, 376732, 604754, 659281, 753464, 1209508, 1318562, 2116639, 2419016, 2637124, 4233278, 5274248, 5745163, 8466556, 11490326, 16933112, 22980652, 40216141, 45961304, 80432282, 160864564, 321729128]

約数ペア:

[(1, 321729128), (2, 160864564), (4, 80432282), (7, 45961304), (8, 40216141), (14, 22980652), (19, 16933112), (28, 11490326), (38, 8466556), (56, 5745163), (61, 5274248), (76, 4233278), (122, 2637124), (133, 2419016), (152, 2116639), (244, 1318562), (266, 1209508), (427, 753464), (488, 659281), (532, 604754), (854, 376732), (1064, 302377), (1159, 277592), (1708, 188366), (2318, 138796), (3416, 94183), (4636, 69398), (4957, 64904), (8113, 39656), (9272, 34699), (9914, 32452), (16226, 19828)]