79916980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{27943}}^1$

素因数の和:27976

約数の個数: 48

約数和(自身を含む): 197172864

約数和(自身を除く): 117255884

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 27943, 55886, 111772, 139715, 279430, 307373, 363259, 558860, 614746, 726518, 1229492, 1453036, 1536865, 1816295, 3073730, 3632590, 3995849, 6147460, 7265180, 7991698, 15983396, 19979245, 39958490, 79916980]

約数ペア:

[(1, 79916980), (2, 39958490), (4, 19979245), (5, 15983396), (10, 7991698), (11, 7265180), (13, 6147460), (20, 3995849), (22, 3632590), (26, 3073730), (44, 1816295), (52, 1536865), (55, 1453036), (65, 1229492), (110, 726518), (130, 614746), (143, 558860), (220, 363259), (260, 307373), (286, 279430), (572, 139715), (715, 111772), (1430, 55886), (2860, 27943)]