1213261712

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{1367}}^1$

素因数の和:1656

約数の個数: 80

約数和(自身を含む): 2693077632

約数和(自身を除く): 1479815920

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 251, 272, 442, 502, 884, 1004, 1367, 1768, 2008, 2734, 3263, 3536, 4016, 4267, 5468, 6526, 8534, 10936, 13052, 17068, 17771, 21872, 23239, 26104, 34136, 35542, 46478, 52208, 55471, 68272, 71084, 92956, 110942, 142168, 185912, 221884, 284336, 302107, 343117, 371824, 443768, 604214, 686234, 887536, 1208428, 1372468, 2416856, 2744936, 4460521, 4833712, 5489872, 5832989, 8921042, 11665978, 17842084, 23331956, 35684168, 46663912, 71368336, 75828857, 93327824, 151657714, 303315428, 606630856, 1213261712]

約数ペア:

[(1, 1213261712), (2, 606630856), (4, 303315428), (8, 151657714), (13, 93327824), (16, 75828857), (17, 71368336), (26, 46663912), (34, 35684168), (52, 23331956), (68, 17842084), (104, 11665978), (136, 8921042), (208, 5832989), (221, 5489872), (251, 4833712), (272, 4460521), (442, 2744936), (502, 2416856), (884, 1372468), (1004, 1208428), (1367, 887536), (1768, 686234), (2008, 604214), (2734, 443768), (3263, 371824), (3536, 343117), (4016, 302107), (4267, 284336), (5468, 221884), (6526, 185912), (8534, 142168), (10936, 110942), (13052, 92956), (17068, 71084), (17771, 68272), (21872, 55471), (23239, 52208), (26104, 46478), (34136, 35542)]