16401990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2161}}^1$

素因数の和:2205

約数の個数: 64

約数和(自身を含む): 44831232

約数和(自身を除く): 28429242

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 23, 30, 33, 46, 55, 66, 69, 110, 115, 138, 165, 230, 253, 330, 345, 506, 690, 759, 1265, 1518, 2161, 2530, 3795, 4322, 6483, 7590, 10805, 12966, 21610, 23771, 32415, 47542, 49703, 64830, 71313, 99406, 118855, 142626, 149109, 237710, 248515, 298218, 356565, 497030, 546733, 713130, 745545, 1093466, 1491090, 1640199, 2733665, 3280398, 5467330, 8200995, 16401990]

約数ペア:

[(1, 16401990), (2, 8200995), (3, 5467330), (5, 3280398), (6, 2733665), (10, 1640199), (11, 1491090), (15, 1093466), (22, 745545), (23, 713130), (30, 546733), (33, 497030), (46, 356565), (55, 298218), (66, 248515), (69, 237710), (110, 149109), (115, 142626), (138, 118855), (165, 99406), (230, 71313), (253, 64830), (330, 49703), (345, 47542), (506, 32415), (690, 23771), (759, 21610), (1265, 12966), (1518, 10805), (2161, 7590), (2530, 6483), (3795, 4322)]